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Class Legality
| Page | What it holds |
|---|---|
| Adjustable trim tabs, IHRA legality | Every IHRA class's answer on Adjustable or rider-controlled trim tabs, grouped by answer. |
| Aftermarket bilge draining system, IHRA legality | Every IHRA class's answer on Aftermarket bilge draining system, grouped by answer. |
| Aftermarket bilge draining system, IJSBA legality | Every IJSBA class's answer on Aftermarket bilge draining system, grouped by answer. |
| Aftermarket bilge draining system, UIM legality | Every UIM class's answer on Aftermarket bilge draining system, grouped by answer. |
| Aftermarket boost sensor, IHRA legality | Every IHRA class's answer on Aftermarket boost sensor, grouped by answer. |
| Aftermarket bulkhead, IHRA legality | Every IHRA class's answer on Aftermarket bulkhead, grouped by answer. |
| Aftermarket camshafts, IHRA legality | Every IHRA class's answer on Aftermarket camshafts, grouped by answer. |
| Aftermarket camshafts, IJSBA legality | Every IJSBA class's answer on Aftermarket camshafts, grouped by answer. |
| Aftermarket camshafts, UIM legality | Every UIM class's answer on Aftermarket camshafts, grouped by answer. |
| Aftermarket carburetor, IHRA legality | Every IHRA class's answer on Aftermarket carburetor, grouped by answer. |
| Aftermarket CDI ignition, IHRA legality | Every IHRA class's answer on Aftermarket CDI ignition (2-stroke), grouped by answer. |
| Aftermarket CDI, IJSBA legality | Every IJSBA class's answer on Aftermarket CDI / ignition box (2-stroke), grouped by answer. |
| Aftermarket CDI, UIM legality | Every UIM class's answer on Aftermarket CDI / ignition box (2-stroke), grouped by answer. |
| Aftermarket charging system, UIM legality | Every UIM class's answer on Aftermarket charging system / stator, grouped by answer. |
| Aftermarket connecting rods, IHRA legality | Every IHRA class's answer on Aftermarket connecting rods, grouped by answer. |
| Aftermarket connecting rods, IJSBA legality | Every IJSBA class's answer on Aftermarket connecting rods, grouped by answer. |
| Aftermarket cooling lines, IHRA legality | Every IHRA class's answer on Aftermarket cooling lines and fittings, grouped by answer. |
| Aftermarket cooling lines, IJSBA legality | Every IJSBA class's answer on Aftermarket cooling lines, bypass fittings, water strainers, flush kits, grouped by answer. |
| Aftermarket cooling lines, UIM legality | Every UIM class's answer on Aftermarket cooling lines, bypass systems and fittings, grouped by answer. |
| Aftermarket crankcase catch-can, UIM legality | Every UIM class's answer on Aftermarket crankcase vent catch-can / blow-by oil system, grouped by answer. |
| Aftermarket cylinder head, IHRA legality | Every IHRA class's answer on Aftermarket cylinder head (2-stroke), grouped by answer. |
| Aftermarket cylinder head, IJSBA legality | Every IJSBA class's answer on Aftermarket cylinder head (2-stroke), grouped by answer. |
| Aftermarket cylinder head, UIM legality | Every UIM class's answer on Aftermarket cylinder head (2-stroke), grouped by answer. |
| Aftermarket cylinder, IJSBA legality | Every IJSBA class's answer on Aftermarket cylinder (2-stroke), grouped by answer. |
| Aftermarket cylinder, UIM legality | Every UIM class's answer on Aftermarket cylinder (2-stroke), grouped by answer. |
| Aftermarket driveshaft, IHRA legality | Every IHRA class's answer on Aftermarket driveshaft and couplers, grouped by answer. |
| Aftermarket driveshaft, UIM legality | Every UIM class's answer on Aftermarket driveshaft, couplers, bearing housing, grouped by answer. |
| Aftermarket electric fuel pump, IHRA legality | Every IHRA class's answer on Aftermarket electric fuel pump, grouped by answer. |
| Aftermarket electric fuel pump, IJSBA legality | Every IJSBA class's answer on Aftermarket electric fuel pump, grouped by answer. |
| Aftermarket electric fuel pump, UIM legality | Every UIM class's answer on Aftermarket electric fuel pump, grouped by answer. |
| Aftermarket exhaust manifold, IJSBA legality | Every IJSBA class's answer on Aftermarket exhaust manifold / head pipe, grouped by answer. |
| Aftermarket exhaust manifold, UIM legality | Every UIM class's answer on Aftermarket exhaust manifold / head pipe, grouped by answer. |
| Aftermarket expansion chamber, IHRA legality | Every IHRA class's answer on Aftermarket expansion chamber / tuned pipe (2-stroke), grouped by answer. |
| Aftermarket expansion chamber, IJSBA legality | Every IJSBA class's answer on Aftermarket expansion chamber / tuned pipe (2-stroke), grouped by answer. |
| Aftermarket expansion chamber, UIM legality | Every UIM class's answer on Aftermarket expansion chamber / tuned pipe (2-stroke), grouped by answer. |
| Aftermarket flame arrester, IHRA legality | Every IHRA class's answer on Aftermarket flame arrester, grouped by answer. |
| Aftermarket flame arrester, IJSBA legality | Every IJSBA class's answer on Aftermarket flame arrester, grouped by answer. |
| Aftermarket flame arrester, UIM legality | Every UIM class's answer on Aftermarket flame arrester / air filter, grouped by answer. |
| Aftermarket flywheel or alternator, UIM legality | Every UIM class's answer on Aftermarket flywheel or alternator (2-stroke), grouped by answer. |
| Aftermarket four-stroke crankshaft, UIM legality | Every UIM class's answer on Aftermarket four-stroke crankshaft, grouped by answer. |
| Aftermarket fuel filler cap, IJSBA legality | Every IJSBA class's answer on Aftermarket fuel filler cap, grouped by answer. |
| Aftermarket fuel filler cap, UIM legality | Every UIM class's answer on Aftermarket fuel filler cap, grouped by answer. |
| Aftermarket fuel injection system, UIM legality | Every UIM class's answer on Aftermarket fuel injection system, grouped by answer. |
| Aftermarket fuel injectors, IHRA legality | Every IHRA class's answer on Aftermarket fuel injectors, grouped by answer. |
| Aftermarket fuel injectors, IJSBA legality | Every IJSBA class's answer on Aftermarket fuel injectors, grouped by answer. |
| Aftermarket gauges, IHRA legality | Every IHRA class's answer on Aftermarket gauges and data logging, grouped by answer. |
| Aftermarket handle pole, IHRA legality | Every IHRA class's answer on Aftermarket handle pole, grouped by answer. |
| Aftermarket handle pole, UIM legality | Every UIM class's answer on Aftermarket handle pole and mounting bracket, grouped by answer. |
| Aftermarket handlebars, IJSBA legality | Every IJSBA class's answer on Aftermarket handlebars, throttle, throttle cable, grips, switches, grouped by answer. |
| Aftermarket handlebars, UIM legality | Every UIM class's answer on Aftermarket handlebars, throttle, cable, grips, grouped by answer. |
| Aftermarket handlepole, IJSBA legality | Every IJSBA class's answer on Aftermarket handlepole / pole bracket, grouped by answer. |
| Aftermarket head gasket, UIM legality | Every UIM class's answer on Aftermarket head gasket, grouped by answer. |
| Aftermarket head pipe, IHRA legality | Every IHRA class's answer on Aftermarket head pipe and exhaust manifold, grouped by answer. |
| Aftermarket hood, IHRA legality | Every IHRA class's answer on Aftermarket hood, grouped by answer. |
| Aftermarket hood, IJSBA legality | Every IJSBA class's answer on Aftermarket hood / engine cover, grouped by answer. |
| Aftermarket hood, UIM legality | Every UIM class's answer on Aftermarket hood, grouped by answer. |
| Aftermarket hull or top deck, IJSBA legality | Every IJSBA class's answer on Aftermarket hull or top deck, grouped by answer. |
| Aftermarket hull trim tabs, UIM legality | Every UIM class's answer on Aftermarket hull trim tabs, grouped by answer. |
| Aftermarket hull, IHRA legality | Every IHRA class's answer on Aftermarket hull, grouped by answer. |
| Aftermarket impeller, IHRA legality | Every IHRA class's answer on Aftermarket impeller, grouped by answer. |
| Aftermarket impeller, IJSBA legality | Every IJSBA class's answer on Aftermarket impeller at OEM diameter, grouped by answer. |
| Aftermarket impeller, UIM legality | Every UIM class's answer on Aftermarket impeller, grouped by answer. |
| Aftermarket intake grate, IHRA legality | Every IHRA class's answer on Aftermarket intake grate, grouped by answer. |
| Aftermarket intake grate, IJSBA legality | Every IJSBA class's answer on Aftermarket intake grate, grouped by answer. |
| Aftermarket intake grate, UIM legality | Every UIM class's answer on Aftermarket intake grate, grouped by answer. |
| Aftermarket intake manifold, IHRA legality | Every IHRA class's answer on Aftermarket intake manifold, grouped by answer. |
| Aftermarket intake manifold, IJSBA legality | Every IJSBA class's answer on Aftermarket intake manifold, grouped by answer. |
| Aftermarket intake manifold, UIM legality | Every UIM class's answer on Aftermarket intake manifold, grouped by answer. |
| Aftermarket intercooler, IHRA legality | Every IHRA class's answer on Aftermarket intercooler, grouped by answer. |
| Aftermarket intercooler, IJSBA legality | Every IJSBA class's answer on Aftermarket intercooler, grouped by answer. |
| Aftermarket intercooler, UIM legality | Every UIM class's answer on Aftermarket intercooler, grouped by answer. |
| Aftermarket nozzle trim system, IJSBA legality | Every IJSBA class's answer on Aftermarket nozzle trim system (pump-mounted), grouped by answer. |
| Aftermarket nozzle trim system, UIM legality | Every UIM class's answer on Aftermarket nozzle trim system (pump-mounted), grouped by answer. |
| Aftermarket or bored pump nozzle, IHRA legality | Every IHRA class's answer on Aftermarket or bored pump nozzle, grouped by answer. |
| Aftermarket or lightened flywheel, IHRA legality | Every IHRA class's answer on Aftermarket or lightened flywheel, grouped by answer. |
| Aftermarket or lightened flywheel, IJSBA legality | Every IJSBA class's answer on Aftermarket or lightened flywheel, grouped by answer. |
| Aftermarket or modified top deck, IHRA legality | Every IHRA class's answer on Aftermarket or modified top deck, grouped by answer. |
| Aftermarket or modified waterbox, IHRA legality | Every IHRA class's answer on Aftermarket or modified waterbox, grouped by answer. |
| Aftermarket or prototype hull, UIM legality | Every UIM class's answer on Aftermarket or prototype hull, grouped by answer. |
| Aftermarket or relocated battery, IHRA legality | Every IHRA class's answer on Aftermarket or relocated battery, grouped by answer. |
| Aftermarket or standalone ECU, IHRA legality | Every IHRA class's answer on Aftermarket or standalone ECU, grouped by answer. |
| Aftermarket or swapped cylinder, IHRA legality | Every IHRA class's answer on Aftermarket or swapped cylinder (2-stroke), grouped by answer. |
| Aftermarket or thicker head gasket, IHRA legality | Every IHRA class's answer on Aftermarket or thicker head gasket, grouped by answer. |
| Aftermarket piston assemblies, IJSBA legality | Every IJSBA class's answer on Aftermarket piston assemblies, grouped by answer. |
| Aftermarket piston assemblies, UIM legality | Every UIM class's answer on Aftermarket piston assemblies, grouped by answer. |
| Aftermarket pistons, IHRA legality | Every IHRA class's answer on Aftermarket pistons, grouped by answer. |
| Aftermarket plug heat range, IJSBA legality | Every IJSBA class's answer on Aftermarket spark plugs of a different heat range, grouped by answer. |
| Aftermarket plug heat rating, UIM legality | Every UIM class's answer on Aftermarket spark plugs of a different heat rating, grouped by answer. |
| Aftermarket pump cover plate, IJSBA legality | Every IJSBA class's answer on Aftermarket pump cover plate / extension, grouped by answer. |
| Aftermarket pump cover plate, UIM legality | Every UIM class's answer on Aftermarket pump cover plate / extension, grouped by answer. |
| Aftermarket pump housing, IHRA legality | Every IHRA class's answer on Aftermarket pump housing and stator vanes, grouped by answer. |
| Aftermarket pump nozzle, IJSBA legality | Every IJSBA class's answer on Aftermarket pump nozzle, venturi, directional nozzle, grouped by answer. |
| Aftermarket pump nozzle, UIM legality | Every UIM class's answer on Aftermarket pump nozzle and directional nozzle, grouped by answer. |
| Aftermarket pump/impeller housing, IJSBA legality | Every IJSBA class's answer on Aftermarket pump/impeller housing, stator vane assembly, pump shoe, grouped by answer. |
| Aftermarket pump/impeller housing, UIM legality | Every UIM class's answer on Aftermarket pump/impeller housing, stator vane assembly, pump plate, pump shoe, grouped by answer. |
| Aftermarket reed cage, IJSBA legality | Every IJSBA class's answer on Aftermarket reed cage / block assembly, grouped by answer. |
| Aftermarket reed petals, IJSBA legality | Every IJSBA class's answer on Aftermarket reed petals, grouped by answer. |
| Aftermarket reed valve assembly, IHRA legality | Every IHRA class's answer on Aftermarket reed valve assembly, grouped by answer. |
| Aftermarket reed valve assembly, UIM legality | Every UIM class's answer on Aftermarket reed valve assembly, grouped by answer. |
| Aftermarket ride plate, IHRA legality | Every IHRA class's answer on Aftermarket ride plate, grouped by answer. |
| Aftermarket seat cover, IHRA legality | Every IHRA class's answer on Aftermarket seat cover, grouped by answer. |
| Aftermarket seat cover, UIM legality | Every UIM class's answer on Aftermarket seat cover, grouped by answer. |
| Aftermarket seat or seat base, IJSBA legality | Every IJSBA class's answer on Aftermarket seat assembly / seat base, grouped by answer. |
| Aftermarket seat or seat base, UIM legality | Every UIM class's answer on Aftermarket seat assembly or seat base, grouped by answer. |
| Aftermarket seat, IHRA legality | Every IHRA class's answer on Aftermarket seat, grouped by answer. |
| Aftermarket sponsons, IHRA legality | Every IHRA class's answer on Aftermarket sponsons, grouped by answer. |
| Aftermarket sponsons, IJSBA legality | Every IJSBA class's answer on Aftermarket sponsons, grouped by answer. |
| Aftermarket sponsons, UIM legality | Every UIM class's answer on Aftermarket sponsons, grouped by answer. |
| Aftermarket standalone ECU, IJSBA legality | Every IJSBA class's answer on Aftermarket standalone ECU, grouped by answer. |
| Aftermarket standalone ECU, UIM legality | Every UIM class's answer on Aftermarket standalone ECU, grouped by answer. |
| Aftermarket steering shaft, IJSBA legality | Every IJSBA class's answer on Aftermarket steering shaft, shaft holder, handlebar holder, steering cables, grouped by answer. |
| Aftermarket steering shaft, UIM legality | Every UIM class's answer on Aftermarket steering shaft, holder, handlebar holder, cables, grouped by answer. |
| Aftermarket supercharger, IHRA legality | Every IHRA class's answer on Aftermarket supercharger, grouped by answer. |
| Aftermarket switches, UIM legality | Every UIM class's answer on Aftermarket switches and switch housings, grouped by answer. |
| Aftermarket thermostat, IJSBA legality | Every IJSBA class's answer on Aftermarket thermostat, pressure regulator, cooling solenoid, grouped by answer. |
| Aftermarket thermostat, UIM legality | Every UIM class's answer on Aftermarket thermostat, pressure regulator, cooling solenoid, grouped by answer. |
| Aftermarket throttle body, IHRA legality | Every IHRA class's answer on Aftermarket throttle body, grouped by answer. |
| Aftermarket turbo or supercharger, IJSBA legality | Every IJSBA class's answer on Aftermarket turbocharger or supercharger, grouped by answer. |
| Aftermarket turbo or supercharger, UIM legality | Every UIM class's answer on Aftermarket turbocharger or supercharger, grouped by answer. |
| Aftermarket turbocharger, IHRA legality | Every IHRA class's answer on Aftermarket turbocharger, grouped by answer. |
| Aftermarket valve springs, IHRA legality | Every IHRA class's answer on Aftermarket valve springs and retainers, grouped by answer. |
| Aftermarket valve springs, IJSBA legality | Every IJSBA class's answer on Aftermarket valve springs and retainers, grouped by answer. |
| Aftermarket valve springs, UIM legality | Every UIM class's answer on Aftermarket valve springs, washers and retainers, grouped by answer. |
| Aftermarket valves, IHRA legality | Every IHRA class's answer on Aftermarket valves, grouped by answer. |
| Aftermarket valves, UIM legality | Every UIM class's answer on Aftermarket valves, grouped by answer. |
| Aftermarket vapour separator, UIM legality | Every UIM class's answer on Aftermarket vapour / air separator, grouped by answer. |
| Aftermarket waterbox, IJSBA legality | Every IJSBA class's answer on Aftermarket waterbox, grouped by answer. |
| Aftermarket waterbox, UIM legality | Every UIM class's answer on Aftermarket waterbox, grouped by answer. |
| Aftermarket/modified carburettor, IJSBA legality | Every IJSBA class's answer on Aftermarket or modified carburetor, grouped by answer. |
| Aftermarket/modified carburettor, UIM legality | Every UIM class's answer on Aftermarket or modified carburettor, grouped by answer. |
| Aftermarket/modified crankshaft, IJSBA legality | Every IJSBA class's answer on Aftermarket or modified crankshaft assembly, grouped by answer. |
| Aftermarket/modified rotary valve, UIM legality | Every UIM class's answer on Aftermarket or modified rotary valve, grouped by answer. |
| Aftermarket/modified throttle body, UIM legality | Every UIM class's answer on Aftermarket or modified throttle body, grouped by answer. |
| Air intake system, IHRA legality | Every IHRA class's answer on Aftermarket air intake or cold air system, grouped by answer. |
| Airflow sensor, IHRA legality | Every IHRA class's answer on Airflow sensor modification or removal, grouped by answer. |
| Ballast weight kits, IJSBA legality | Every IJSBA class's answer on Ballast weight kits, grouped by answer. |
| Ballast weight kits, UIM legality | Every UIM class's answer on Ballast weight kits, grouped by answer. |
| Ballast weight, IHRA legality | Every IHRA class's answer on Ballast weight, grouped by answer. |
| Base gasket thickness change, IHRA legality | Every IHRA class's answer on Base gasket thickness change, grouped by answer. |
| Boost relief, UIM legality | Every UIM class's answer on Boost relief / overboost control valve, grouped by answer. |
| Carb jet kit, IJSBA legality | Every IJSBA class's answer on Carb jet kit, needle valve, needle valve spring, grouped by answer. |
| Carb jet kit, UIM legality | Every UIM class's answer on Carb jet kit, needle valve, needle valve spring, grouped by answer. |
| Carburetor jets, IHRA legality | Every IHRA class's answer on Carburetor jets, needle valves and springs, grouped by answer. |
| Class Legality: IJSBA, UIM and IHRA rules | Rules are rewritten most seasons… |
| Crankcase repair, IHRA legality | Every IHRA class's answer on Crankcase repair or replica crankcase, grouped by answer. |
| Crankshaft assembly, IHRA legality | Every IHRA class's answer on Aftermarket or modified crankshaft assembly, grouped by answer. |
| Crankshaft rebuild components, UIM legality | Every UIM class's answer on Crankshaft rebuild components (counterweights, pins, rods, bearings), grouped by answer. |
| Cylinder head work, IHRA legality | Every IHRA class's answer on Cylinder head work (4-stroke), grouped by answer. |
| Drag, 2 Stroke Unlimited legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, 2 Stroke Unlimited machine, part by part, with the rule section against each answer. |
| Drag, Sea-Doo Pro Stock legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Sea-Doo Pro Stock machine, part by part, with the rule section against each answer. |
| Drag, Sea-Doo Spec legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Sea-Doo Spec machine, part by part, with the rule section against each answer. |
| Drag, Sea-Doo vs Sea-Doo legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Sea-Doo vs Sea-Doo machine, part by part, with the rule section against each answer. |
| Drag, Stand Up Unlimited legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Stand Up Unlimited machine, part by part, with the rule section against each answer. |
| Drag, Super Stock legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Super Stock machine, part by part, with the rule section against each answer. |
| Drag, Turbo No Nitrous legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Turbo No Nitrous machine, part by part, with the rule section against each answer. |
| Drag, Unlimited legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Unlimited machine, part by part, with the rule section against each answer. |
| Drag, Yamaha Pro Stock legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Yamaha Pro Stock machine, part by part, with the rule section against each answer. |
| Drag, Yamaha Spec legality, IHRA | What the IHRA 2026 rulebook permits on a Drag, Yamaha Spec machine, part by part, with the rule section against each answer. |
| ECU reflash or reprogramming, IHRA legality | Every IHRA class's answer on ECU reflash or reprogramming, grouped by answer. |
| ECU reflash, IJSBA legality | Every IJSBA class's answer on ECU reflash / reprogramming of the OEM unit, grouped by answer. |
| ECU reflash, UIM legality | Every UIM class's answer on ECU reflash / software reprogramming, grouped by answer. |
| Endurance legality, UIM | What the UIM 2026 rulebook permits on a Endurance machine, part by part, with the rule section against each answer. |
| Engine block substitution, IHRA legality | Every IHRA class's answer on Engine block substitution, grouped by answer. |
| Engine flush, UIM legality | Every UIM class's answer on Engine flush / rinse kit, grouped by answer. |
| Exhaust restrictor plate removal, IHRA legality | Every IHRA class's answer on Exhaust restrictor plate removal, grouped by answer. |
| Fixed Steering Ski Stock legality, IJSBA | What the IJSBA 2025 rulebook permits on a Fixed Steering Ski Stock machine, part by part, with the rule section against each answer. |
| FIXED-position trim tab, IJSBA legality | Every IJSBA class's answer on Aftermarket FIXED-position trim tab / ride plate extension, grouped by answer. |
| Flame arrester to throttle ducting, UIM legality | Every UIM class's answer on Ducting between flame arrester and throttle body / compressor, grouped by answer. |
| Flotation foam removal, IHRA legality | Every IHRA class's answer on Flotation foam removal, grouped by answer. |
| Footholds, IHRA legality | Every IHRA class's answer on Footholds, foot straps and tray mats, grouped by answer. |
| Footholds, IJSBA legality | Every IJSBA class's answer on Footholds, tray mats, padding kits, grouped by answer. |
| Four Stroke Ski Lites legality, IJSBA | What the IJSBA 2025 rulebook permits on a Four Stroke Ski Lites machine, part by part, with the rule section against each answer. |
| Four-Stroke Ski Lites legality, IHRA | What the IHRA 2026 rulebook permits on a Four-Stroke Ski Lites machine, part by part, with the rule section against each answer. |
| Freestyle Amateur legality, UIM | What the UIM 2026 rulebook permits on a Freestyle Amateur machine, part by part, with the rule section against each answer. |
| Freestyle Free legality, UIM | What the UIM 2026 rulebook permits on a Freestyle Free machine, part by part, with the rule section against each answer. |
| Freestyle legality, IHRA | What the IHRA 2026 rulebook permits on a Freestyle machine, part by part, with the rule section against each answer. |
| Freestyle legality, IJSBA | What the IJSBA 2025 rulebook permits on a Freestyle machine, part by part, with the rule section against each answer. |
| Fuel tank, IHRA legality | Every IHRA class's answer on Aftermarket or substituted fuel tank, grouped by answer. |
| Full porting service, IJSBA legality | Every IJSBA class's answer on Full porting service (ports reshaped, runners modified), grouped by answer. |
| Full porting service, UIM legality | Every UIM class's answer on Full porting service (ports reshaped, runners modified), grouped by answer. |
| Handlebars, IHRA legality | Every IHRA class's answer on Handlebars, grips and controls, grouped by answer. |
| High-pressure fuel line, IHRA legality | Every IHRA class's answer on High-pressure fuel line and fittings, grouped by answer. |
| Ignition timing adjustment, IHRA legality | Every IHRA class's answer on Ignition timing adjustment or trigger plate, grouped by answer. |
| IHRA classes | Every IHRA class, which of them publish their own technical rules and which borrow another class's. |
| IJSBA classes | Every IJSBA class, which of them publish their own technical rules and which borrow another class's. |
| Jet Raid legality, UIM | What the UIM 2026 rulebook permits on a Jet Raid machine, part by part, with the rule section against each answer. |
| Legality by part | Start from the part rather than the class. |
| Long-distance fuel filling system, UIM legality | Every UIM class's answer on Long-distance fuel filling system (stopper and tank connection), grouped by answer. |
| Nitrous oxide system, IHRA legality | Every IHRA class's answer on Nitrous oxide system, grouped by answer. |
| Offshore legality, UIM | What the UIM 2026 rulebook permits on a Offshore machine, part by part, with the rule section against each answer. |
| Padding, UIM legality | Every UIM class's answer on Padding, mat kits and custom paint, grouped by answer. |
| Parallel Slalom legality, UIM | What the UIM 2026 rulebook permits on a Parallel Slalom machine, part by part, with the rule section against each answer. |
| Port chamfering service, IJSBA legality | Every IJSBA class's answer on Port chamfering service (within the appendix limit), grouped by answer. |
| Port chamfering service, UIM legality | Every UIM class's answer on Port chamfering service, grouped by answer. |
| Replacement battery, IJSBA legality | Every IJSBA class's answer on Replacement battery, grouped by answer. |
| Replacement battery, UIM legality | Every UIM class's answer on Replacement battery, grouped by answer. |
| Replacement bumpers, IHRA legality | Every IHRA class's answer on Replacement bumpers and side rails, grouped by answer. |
| Replacement bumpers, IJSBA legality | Every IJSBA class's answer on Replacement bumpers and water-spray deflectors, grouped by answer. |
| Replacement bumpers, UIM legality | Every UIM class's answer on Replacement bumpers and water-spray deflectors, grouped by answer. |
| Replacement engine mounts, IHRA legality | Every IHRA class's answer on Replacement engine mounts, grouped by answer. |
| Replacement engine mounts, IJSBA legality | Every IJSBA class's answer on Replacement engine mounts and engine bed, grouped by answer. |
| Replacement engine mounts, UIM legality | Every UIM class's answer on Replacement engine mounts / engine bed, grouped by answer. |
| Replacement starter motor, IHRA legality | Every IHRA class's answer on Replacement starter motor, grouped by answer. |
| Replacement starter motor, IJSBA legality | Every IJSBA class's answer on Replacement starter motor and bendix, grouped by answer. |
| Replacement starter motor, UIM legality | Every UIM class's answer on Replacement starter motor and bendix, grouped by answer. |
| Replacement trim plates, IHRA legality | Every IHRA class's answer on Replacement trim plates, grouped by answer. |
| Replacement wear ring, IHRA legality | Every IHRA class's answer on Replacement wear ring, grouped by answer. |
| Replacement wear ring, IJSBA legality | Every IJSBA class's answer on Replacement wear ring, grouped by answer. |
| Replacement wear ring, UIM legality | Every UIM class's answer on Replacement wear ring, grouped by answer. |
| Replacement/aftermarket fuel tank, IJSBA legality | Every IJSBA class's answer on Replacement or aftermarket fuel tank, grouped by answer. |
| Replacement/aftermarket fuel tank, UIM legality | Every UIM class's answer on Replacement or aftermarket fuel tank, grouped by answer. |
| Reverse bucket or brake removal, IHRA legality | Every IHRA class's answer on Reverse bucket or brake removal, grouped by answer. |
| Reverse gate removal, UIM legality | Every UIM class's answer on Reverse gate removal, grouped by answer. |
| Rotary valve, IHRA legality | Every IHRA class's answer on Aftermarket or modified rotary valve, grouped by answer. |
| Runabout Endurance legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout Endurance machine, part by part, with the rule section against each answer. |
| Runabout GP legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout GP machine, part by part, with the rule section against each answer. |
| Runabout GP1 legality, UIM | What the UIM 2026 rulebook permits on a Runabout GP1 machine, part by part, with the rule section against each answer. |
| Runabout GP2 legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout GP2 machine, part by part, with the rule section against each answer. |
| Runabout GP2 legality, UIM | What the UIM 2026 rulebook permits on a Runabout GP2 machine, part by part, with the rule section against each answer. |
| Runabout GP3 legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout GP3 machine, part by part, with the rule section against each answer. |
| Runabout GP3 legality, UIM | What the UIM 2026 rulebook permits on a Runabout GP3 machine, part by part, with the rule section against each answer. |
| Runabout GP4 legality, UIM | What the UIM 2026 rulebook permits on a Runabout GP4 machine, part by part, with the rule section against each answer. |
| Runabout Juniors GP4 legality, UIM | What the UIM 2026 rulebook permits on a Runabout Juniors GP4 machine, part by part, with the rule section against each answer. |
| Runabout Ladies GP4 legality, UIM | What the UIM 2026 rulebook permits on a Runabout Ladies GP4 machine, part by part, with the rule section against each answer. |
| Runabout Limited legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout Limited machine, part by part, with the rule section against each answer. |
| Runabout Limited legality, IJSBA | What the IJSBA 2022 rulebook permits on a Runabout Limited machine, part by part, with the rule section against each answer. |
| Runabout Lites legality, IHRA | What the IHRA 2026 rulebook permits on a Runabout Lites machine, part by part, with the rule section against each answer. |
| Runabout Naturally Aspirated legality, IJSBA | What the IJSBA 2025 rulebook permits on a Runabout Naturally Aspirated machine, part by part, with the rule section against each answer. |
| Runabout Open / GP legality, IJSBA | What the IJSBA 2024 rulebook permits on a Runabout Open / GP machine, part by part, with the rule section against each answer. |
| Runabout Rec Lites legality, IJSBA | What the IJSBA 2022 rulebook permits on a Runabout Rec Lites machine, part by part, with the rule section against each answer. |
| Runabout Stock legality, IJSBA | What the IJSBA 2024 rulebook permits on a Runabout Stock machine, part by part, with the rule section against each answer. |
| Runabout Superstock legality, IJSBA | What the IJSBA 2025 rulebook permits on a Runabout Superstock machine, part by part, with the rule section against each answer. |
| Runabout Veterans GP1 legality, UIM | What the UIM 2026 rulebook permits on a Runabout Veterans GP1 machine, part by part, with the rule section against each answer. |
| Ski 1100 Modified legality, IHRA | What the IHRA 2026 rulebook permits on a Ski 1100 Modified machine, part by part, with the rule section against each answer. |
| Ski 1500 Modified legality, IHRA | What the IHRA 2026 rulebook permits on a Ski 1500 Modified machine, part by part, with the rule section against each answer. |
| Ski Division GP1 legality, UIM | What the UIM 2026 rulebook permits on a Ski Division GP1 machine, part by part, with the rule section against each answer. |
| Ski Division GP2 legality, UIM | What the UIM 2026 rulebook permits on a Ski Division GP2 machine, part by part, with the rule section against each answer. |
| Ski Division GP3 legality, UIM | What the UIM 2026 rulebook permits on a Ski Division GP3 machine, part by part, with the rule section against each answer. |
| Ski Division GP4 legality, UIM | What the UIM 2026 rulebook permits on a Ski Division GP4 machine, part by part, with the rule section against each answer. |
| Ski Future Electric (SFE) legality, UIM | What the UIM 2026 rulebook permits on a Ski Future Electric (SFE) machine, part by part, with the rule section against each answer. |
| Ski GP legality, IHRA | What the IHRA 2026 rulebook permits on a Ski GP machine, part by part, with the rule section against each answer. |
| Ski GP2 legality, IHRA | What the IHRA 2026 rulebook permits on a Ski GP2 machine, part by part, with the rule section against each answer. |
| Ski GP3 legality, IHRA | What the IHRA 2026 rulebook permits on a Ski GP3 machine, part by part, with the rule section against each answer. |
| Ski Grand Prix legality, IJSBA | What the IJSBA 2025 rulebook permits on a Ski Grand Prix machine, part by part, with the rule section against each answer. |
| Ski Juniors GP3.2 legality, UIM | What the UIM 2026 rulebook permits on a Ski Juniors GP3.2 machine, part by part, with the rule section against each answer. |
| Ski Juniors GP3.3 legality, UIM | What the UIM 2026 rulebook permits on a Ski Juniors GP3.3 machine, part by part, with the rule section against each answer. |
| Ski Juniors GP4 legality, UIM | What the UIM 2026 rulebook permits on a Ski Juniors GP4 machine, part by part, with the rule section against each answer. |
| Ski Ladies GP1 legality, UIM | What the UIM 2026 rulebook permits on a Ski Ladies GP1 machine, part by part, with the rule section against each answer. |
| Ski Limited legality, IHRA | What the IHRA 2026 rulebook permits on a Ski Limited machine, part by part, with the rule section against each answer. |
| Ski Lites legality, IHRA | What the IHRA 2026 rulebook permits on a Ski Lites machine, part by part, with the rule section against each answer. |
| Ski Lites legality, IJSBA | What the IJSBA 2024 rulebook permits on a Ski Lites machine, part by part, with the rule section against each answer. |
| Ski Modified legality, IJSBA | What the IJSBA 2024 rulebook permits on a Ski Modified machine, part by part, with the rule section against each answer. |
| Ski Stock legality, IJSBA | What the IJSBA 2025 rulebook permits on a Ski Stock machine, part by part, with the rule section against each answer. |
| Ski Superstock legality, IJSBA | What the IJSBA 2025 rulebook permits on a Ski Superstock machine, part by part, with the rule section against each answer. |
| Ski Veterans GP1 legality, UIM | What the UIM 2026 rulebook permits on a Ski Veterans GP1 machine, part by part, with the rule section against each answer. |
| Ski Vintage legality, IHRA | What the IHRA 2026 rulebook permits on a Ski Vintage machine, part by part, with the rule section against each answer. |
| Spark plugs, IHRA legality | Every IHRA class's answer on Spark plugs, wiring, hoses and clamps, grouped by answer. |
| Sport GP legality, IHRA | What the IHRA 2026 rulebook permits on a Sport GP machine, part by part, with the rule section against each answer. |
| Sport GP legality, IJSBA | What the IJSBA 2025 rulebook permits on a Sport GP machine, part by part, with the rule section against each answer. |
| Sport Spec legality, IHRA | What the IHRA 2026 rulebook permits on a Sport Spec machine, part by part, with the rule section against each answer. |
| Sport Spec legality, IJSBA | What the IJSBA 2024 rulebook permits on a Sport Spec machine, part by part, with the rule section against each answer. |
| Steering shaft, IHRA legality | Every IHRA class's answer on Steering shaft, holder and cables, grouped by answer. |
| Stinger diameter reducing insert, IHRA legality | Every IHRA class's answer on Stinger diameter reducing insert, grouped by answer. |
| Stinger reducer insert, IJSBA legality | Every IJSBA class's answer on Stinger reducer insert + cooling line, grouped by answer. |
| Supercharger internals, IHRA legality | Every IHRA class's answer on Supercharger internals, clutch and pulleys, grouped by answer. |
| Supercharger rebuild internals, IJSBA legality | Every IJSBA class's answer on Supercharger rebuild internals, clutch, belt, pulleys, grouped by answer. |
| Throttle body, IJSBA legality | Every IJSBA class's answer on Aftermarket or modified throttle body, grouped by answer. |
| Through-hull exhaust flap removal, UIM legality | Every UIM class's answer on Through-hull exhaust outlet flap removal, grouped by answer. |
| Through-hull exhaust outlet, IHRA legality | Every IHRA class's answer on Relocated or aftermarket through-hull outlet, grouped by answer. |
| Through-hull exhaust outlet, IJSBA legality | Every IJSBA class's answer on Through-hull exhaust outlet / relocation kit, grouped by answer. |
| Titanium driveshaft, IHRA legality | Every IHRA class's answer on Titanium driveshaft, grouped by answer. |
| Titanium driveshaft, IJSBA legality | Every IJSBA class's answer on Titanium driveshaft, impeller housing or stator vane assembly, grouped by answer. |
| Titanium driveshaft, UIM legality | Every UIM class's answer on Titanium driveshaft, impeller housing or stator vane assembly, grouped by answer. |
| Titanium fasteners, IHRA legality | Every IHRA class's answer on Titanium fasteners, grouped by answer. |
| Trim tabs, rider or auto, IJSBA legality | Every IJSBA class's answer on Rider-controlled or automatic trim tab system, grouped by answer. |
| UIM classes | Every UIM class, which of them publish their own technical rules and which borrow another class's. |
| UIM Hydro-Fly legality, UIM | What the UIM 2026 rulebook permits on a UIM Hydro-Fly machine, part by part, with the rule section against each answer. |
| Ventilation tubes, IHRA legality | Every IHRA class's answer on Ventilation tubes and vent sealing, grouped by answer. |
| Vintage SC legality, IJSBA | What the IJSBA 2022 rulebook permits on a Vintage SC machine, part by part, with the rule section against each answer. |
| Vintage Ski legality, IJSBA | What the IJSBA 2025 rulebook permits on a Vintage Ski machine, part by part, with the rule section against each answer. |
| Vintage Ski Limited legality, IJSBA | What the IJSBA 2025 rulebook permits on a Vintage Ski Limited machine, part by part, with the rule section against each answer. |
| Vintage X2 legality, IJSBA | What the IJSBA 2023 rulebook permits on a Vintage X2 machine, part by part, with the rule section against each answer. |
| Water-injected, IHRA legality | Every IHRA class's answer on Water-injected (wet) exhaust pipe, grouped by answer. |
| Which rulebook binds your ski | Where the sanctioning bodies disagree… |
| Wiring harness, IHRA legality | Every IHRA class's answer on Aftermarket wiring harness or connectors, grouped by answer. |
| X2 Vintage legality, IHRA | What the IHRA 2026 rulebook permits on a X2 Vintage machine, part by part, with the rule section against each answer. |
Racing
| Page | What it holds |
|---|---|
| Classes in plain words: Stock, Limited, GP | What the class names mean in the IJSBA, UIM and IHRA rulebooks… |
| Endurance and offshore, by the rule book | Long-distance racing is the discipline the rule books treat most differently. |
| Equipment and scrutineering in racing | Helmet, life jacket, back protection, wetsuit, gloves and footwear in the IJSBA… |
| Events: championships, tours and races | The World Finals, the IJSBA National Tour, the World Cup WaterCross Tour, LB2CAT… |
| Formats and disciplines in racing | Closed course, slalom, endurance, offshore, freestyle, drag and hydro-fly… |
| Freestyle as a discipline in the rule books | Freestyle is the one IJSBA discipline scored by people rather than by a finish line. |
| Havasu 300 and Mark Hahn Memorial 300 | Endurance racing at Lake Havasu under a memorial title that the association… |
| Homologation, from race part to retail part | Homologation is the count that decides whether a machine may race at all. |
| How the IJSBA classes changed, 2002 to 2025 | The IJSBA never published a history of its own classes. |
| How the sport is organised: IJSBA, UIM, IHRA | The three sanctioning bodies whose rulebooks this site reads: IJSBA, UIM and IHRA. |
| IJSBA National Tour | The IJSBA's national points championship in the United States… |
| IJSBA World Finals | The season-ending championship of the IJSBA and the sport's largest event… |
| Long Beach to Catalina and Back (LB2CAT) | An IJSBA-sanctioned offshore race of 57 miles round trip from Long Beach… |
| New to racing? Start here | Seven steps from watching your first race to reading your first result, in plain words… |
| P1 AquaX | An endurance series run in Britain from 2011 and the United States… |
| Race numbers: size, colour and placement | What the IJSBA, UIM and IHRA rulebooks say about race numbers… |
| Racing history, chapter by chapter | The history of jet ski racing as documents support it… |
| Racing: how the sport is organised and run | How jet ski racing is organised and run… |
| Riders: tiers, licences and ages in racing | What a rider has to be… |
| Scoring, protests, penalties and appeals | How motos score and championships add up, how to protest and what it costs… |
| Sound and off-throttle steering | Two things shaped where a personal watercraft could be run before any… |
| The aftermarket: exhaust pipes and engine parts | This chapter reads what the held documents say about the makers… |
| The aftermarket: hulls, rule books and closures | This chapter reads what documents say about the makers of aftermarket hulls and complete skis… |
| The aftermarket: pumps, plates, mats and the registers | Impellers, intake grates, ride plates and deck mats were sold by specialist makers… |
| The aftermarket: shops, dealers and the teams they ran | Some of the shops that sold racing parts also put riders… |
| The current state: three bodies, 2024 to 2026 | In the 2026 season three sanctioning bodies publish rule books a racer… |
| The eras of watercraft racing | The sport's past in spans of years, each told in one short panel. |
| The IJSBA and the World Finals | The association that sanctions most of the sport has never written its own history. |
| The manufacturers, 1985 to 2005 | No manufacturer has published a history of its racing. |
| The race weekend, rule by rule | How a jet ski race weekend runs under the IJSBA, UIM and IHRA rulebooks… |
| The Sea-Doo factory era, as far as documents go | The factory era is the part of Sea-Doo's racing story everyone tells… |
| WGP#1 World Grand Prix and World Series | A Thai-anchored international series whose About page dates its first event… |
| Which class is for me? | A few plain questions, answered by what the IJSBA, UIM and IHRA rulebooks allow… |
| World Cup WaterCross Tour | A Florida tour, IJSBA sanctioned… |
Model Reference
| Page | What it holds |
|---|---|
| Games, from Wave Race to Riptide | |
| How the machines changed | How these machines got the way they are… |
| How we know: what each confidence word means | The words this archive uses to say how sure it is, for rulebook rows… |
| Jetpilot: one logo, two companies | A stand-up racing apparel brand founded in California in 1986, sold to Japan in 1999… |
| Kawasaki 300SX by model year | The Kawasaki 300SX is recorded for five consecutive model years, 1987 to 1991. |
| Kawasaki 550SX by model year | The Kawasaki 550SX is recorded for six consecutive model years, 1990 to 1995. |
| Kawasaki 650SX by model year | The Kawasaki 650SX is recorded for seven consecutive model years, 1987 to 1993. |
| Kawasaki 750 STX by model year | The Kawasaki 750 STX is recorded here for a single model year, 1998. |
| Kawasaki 750SS by model year | The Kawasaki 750SS is recorded for four consecutive model years, 1992 to 1995. |
| Kawasaki 750SX by model year | The Kawasaki 750SX is recorded for four consecutive model years, 1992 to 1995. |
| Kawasaki 750SXi by model year | The Kawasaki 750SXi is recorded for three consecutive model years, 1995 to 1997. |
| Kawasaki 750SXi Pro by model year | The Kawasaki 750SXi Pro is recorded for five consecutive model years, 1998 to 2002. |
| Kawasaki 750ZXi by model year | The Kawasaki 750ZXi is recorded for three consecutive model years, 1995 to 1997. |
| Kawasaki 800 SX-R by model year | The Kawasaki 800 SX-R is recorded for nine consecutive model years, 2003 to 2011. |
| Kawasaki 900 STS by model year | The Kawasaki 900 STS is recorded for two consecutive model years, 2001 to 2002. |
| Kawasaki 900 STX by model year | The Kawasaki 900 STX is recorded for ten consecutive model years, 1997 to 2006. |
| Kawasaki 900ZXi by model year | The Kawasaki 900ZXi is recorded for three consecutive model years, 1995 to 1997. |
| Kawasaki 1100 STX by model year | The Kawasaki 1100 STX is recorded for three consecutive model years, 1997 to 1999. |
| Kawasaki 1100 STX D.I. by model year | The Kawasaki 1100 STX D.I. is recorded for four consecutive model years, 2000 to 2003. |
| Kawasaki 1100ZXi by model year | The Kawasaki 1100ZXi is recorded for eight consecutive model years, 1996 to 2003. |
| Kawasaki 1200 STX-R by model year | The Kawasaki 1200 STX-R is recorded for four consecutive model years, 2002 to 2005. |
| Kawasaki Jet Mate by model year | The Kawasaki Jet Mate is recorded for four consecutive model years, 1989 to 1992. |
| Kawasaki JS300 by model year | The Kawasaki JS300 is recorded for three consecutive model years, 1986 to 1988. |
| Kawasaki JS400 by model year | The Kawasaki JS400 is recorded here for a single model year, 1976. |
| Kawasaki JS440 by model year | The Kawasaki JS440 is recorded for sixteen consecutive model years, 1977 to 1992. |
| Kawasaki JS550 by model year | The Kawasaki JS550 is recorded for eight consecutive model years, 1982 to 1989. |
| Kawasaki model reference, 1976 to now | Every Kawasaki model line A to Z, 57 in all, each with its own page. |
| Kawasaki SC by model year | The Kawasaki SC is recorded for five consecutive model years, 1991 to 1995. |
| Kawasaki SS by model year | The Kawasaki SS is recorded for two consecutive model years, 1996 to 1997. |
| Kawasaki ST 160X by model year | The Kawasaki ST 160X appears in this reference for one model year so far, 2026. |
| Kawasaki ST by model year | The Kawasaki ST is recorded for two consecutive model years, 1994 to 1995. |
| Kawasaki STS by model year | The Kawasaki STS is recorded for three consecutive model years, 1995 to 1997. |
| Kawasaki STX 160 by model year | The Kawasaki STX 160 has been listed every year since 2020… |
| Kawasaki STX 160LX by model year | The Kawasaki STX 160LX has been listed every year since 2020… |
| Kawasaki STX 160X by model year | The Kawasaki STX 160X has been listed every year since 2020… |
| Kawasaki STX by model year | The Kawasaki STX is recorded for two consecutive model years, 2009 to 2010. |
| Kawasaki STX-12F by model year | The Kawasaki STX-12F is recorded for five consecutive model years, 2003 to 2007. |
| Kawasaki STX-15F by model year | The Kawasaki STX-15F is recorded for sixteen consecutive model years, 2004 to 2019. |
| Kawasaki Super Sport Xi by model year | The Kawasaki Super Sport Xi is recorded for five consecutive model years, 1993 to 1997. |
| Kawasaki SX-R 160 by model year | The Kawasaki SX-R 160 is recorded here for a single model year, 2024. |
| Kawasaki SX-R 1500 by model year | The Kawasaki SX-R 1500 is recorded here for a single model year, 2017. |
| Kawasaki SX-R by model year | The Kawasaki SX-R is recorded for five consecutive model years, 2018 to 2022. |
| Kawasaki TS (Tandem Sport) by model year | The Kawasaki TS (Tandem Sport) is recorded for eight consecutive model years, 1989 to 1996. |
| Kawasaki Ultra 130 D.I. by model year | The Kawasaki Ultra 130 D.I. is recorded for four consecutive model years, 2001 to 2004. |
| Kawasaki Ultra 150 by model year | The Kawasaki Ultra 150 is recorded for seven consecutive model years, 1999 to 2005. |
| Kawasaki Ultra 160LX by model year | The Kawasaki Ultra 160LX has been listed every year since 2023… |
| Kawasaki Ultra 160LX-S Angler by model year | The Kawasaki Ultra 160LX-S Angler has been listed every year since 2025… |
| Kawasaki Ultra 160LX-S by model year | The Kawasaki Ultra 160LX-S has been listed every year since 2023… |
| Kawasaki Ultra 250X by model year | The Kawasaki Ultra 250X is recorded for two consecutive model years, 2007 to 2008. |
| Kawasaki Ultra 260LX by model year | The Kawasaki Ultra 260LX is recorded for two consecutive model years, 2009 to 2010. |
| Kawasaki Ultra 260X by model year | The Kawasaki Ultra 260X is recorded for two consecutive model years, 2009 to 2010. |
| Kawasaki Ultra 300LX by model year | The Kawasaki Ultra 300LX is recorded for three consecutive model years, 2011 to 2013. |
| Kawasaki Ultra 300X by model year | The Kawasaki Ultra 300X is recorded for three consecutive model years, 2011 to 2013. |
| Kawasaki Ultra 310LX by model year | The Kawasaki Ultra 310LX has been listed every year since 2014… |
| Kawasaki Ultra 310LX-S by model year | The Kawasaki Ultra 310LX-S has been listed every year since 2022… |
| Kawasaki Ultra 310R by model year | The Kawasaki Ultra 310R is recorded for nine consecutive model years, 2014 to 2022. |
| Kawasaki Ultra 310X by model year | The Kawasaki Ultra 310X is recorded for twelve consecutive model years, 2014 to 2025. |
| Kawasaki Ultra 310X SE by model year | The Kawasaki Ultra 310X SE is recorded for six consecutive model years, 2014 to 2019. |
| Kawasaki Ultra LX by model year | The Kawasaki Ultra LX is recorded for sixteen consecutive model years, 2007 to 2022. |
| Kawasaki X-2 by model year | The Kawasaki X-2 is recorded for ten consecutive model years, 1986 to 1995. |
| Kawasaki Xi Sport by model year | The Kawasaki Xi Sport is recorded for two consecutive model years, 1998 to 1999. |
| Kawasaki XiR by model year | The Kawasaki XiR is recorded here for a single model year, 1994. |
| Marine Jet, Yamaha's name for the same ski | In Japan these are not WaveRunners. |
| Model Reference: specs, timelines, origins | Pick a make for its model lines A to Z. |
| Model timelines | Which machines each company made, year by year, restated from one named source per make. |
| Sea-Doo 3D by model year | The Sea-Doo 3D is recorded for two consecutive model years, 2004 to 2005. |
| Sea-Doo 3D DI by model year | The Sea-Doo 3D DI is recorded for two consecutive model years, 2006 to 2007. |
| Sea-Doo Explorer Pro 170 by model year | The Sea-Doo Explorer Pro 170 has been listed every year since 2023… |
| Sea-Doo Explorer Pro 230 by model year | The Sea-Doo Explorer Pro 230 has been listed every year since 2024… |
| Sea-Doo Fish Pro by model year | The Sea-Doo Fish Pro is recorded for three consecutive model years, 2019 to 2021. |
| Sea-Doo FishPro Apex 300 by model year | The Sea-Doo FishPro Apex 300 is recorded here for a single model year, 2025. |
| Sea-Doo FishPro Scout 130 by model year | The Sea-Doo FishPro Scout 130 is recorded for five consecutive model years, 2022 to 2026. |
| Sea-Doo FishPro Sport 170 by model year | The Sea-Doo FishPro Sport 170 has been listed every year since 2022… |
| Sea-Doo FishPro Trophy 170 by model year | The Sea-Doo FishPro Trophy 170 has been listed every year since 2022… |
| Sea-Doo GS by model year | The Sea-Doo GS is recorded for five consecutive model years, 1997 to 2001. |
| Sea-Doo GSI by model year | The Sea-Doo GSI is recorded here for a single model year, 1997. |
| Sea-Doo GSX by model year | The Sea-Doo GSX is recorded for two consecutive model years, 1996 to 1997. |
| Sea-Doo GSX Limited by model year | The Sea-Doo GSX Limited is recorded for three consecutive model years, 1997 to 1999. |
| Sea-Doo GSX RFI by model year | The Sea-Doo GSX RFI is recorded for three consecutive model years, 1999 to 2001. |
| Sea-Doo GT by model year | The Sea-Doo GT is recorded for two consecutive model years, 1990 to 1991. |
| Sea-Doo GTI 90 by model year | The Sea-Doo GTI 90 is recorded for six consecutive model years, 2017 to 2022. |
| Sea-Doo GTI 130 by model year | The Sea-Doo GTI 130 appears in eighteen model years over two separate runs… |
| Sea-Doo GTI 155 by model year | The Sea-Doo GTI 155 is recorded here for a single model year, 2017. |
| Sea-Doo GTI by model year | The Sea-Doo GTI appears in thirteen model years over two separate runs… |
| Sea-Doo GTI LE by model year | The Sea-Doo GTI LE is recorded for three consecutive model years, 2002 to 2004. |
| Sea-Doo GTI LE RFI by model year | The Sea-Doo GTI LE RFI is recorded for three consecutive model years, 2003 to 2005. |
| Sea-Doo GTI Limited 155 by model year | The Sea-Doo GTI Limited 155 is recorded for eight consecutive model years, 2011 to 2018. |
| Sea-Doo GTI Pro 130 by model year | The Sea-Doo GTI Pro 130 is recorded here for a single model year, 2020. |
| Sea-Doo GTI RFI by model year | The Sea-Doo GTI RFI is recorded for two consecutive model years, 2004 to 2005. |
| Sea-Doo GTI SE 90 by model year | The Sea-Doo GTI SE 90 is recorded for two consecutive model years, 2017 to 2018. |
| Sea-Doo GTI SE 130 by model year | The Sea-Doo GTI SE 130 has been listed every year since 2008… |
| Sea-Doo GTI SE 155 by model year | The Sea-Doo GTI SE 155 is recorded for twelve consecutive model years, 2008 to 2019. |
| Sea-Doo GTI SE 170 by model year | The Sea-Doo GTI SE 170 has been listed every year since 2020… |
| Sea-Doo GTI SE by model year | The Sea-Doo GTI SE is recorded for two consecutive model years, 2006 to 2007. |
| Sea-Doo GTR 215 by model year | The Sea-Doo GTR 215 is recorded for five consecutive model years, 2012 to 2016. |
| Sea-Doo GTR 230 by model year | The Sea-Doo GTR 230 has been listed every year since 2017… |
| Sea-Doo GTR-X 230 by model year | The Sea-Doo GTR-X 230 is recorded for three consecutive model years, 2017 to 2019. |
| Sea-Doo GTR-X 300 by model year | The Sea-Doo GTR-X 300 has been listed every year since 2024… |
| Sea-Doo GTS 90 by model year | The Sea-Doo GTS 90 is recorded for two consecutive model years, 2017 to 2018. |
| Sea-Doo GTS 130 by model year | The Sea-Doo GTS 130 is recorded for six consecutive model years, 2011 to 2016. |
| Sea-Doo GTS by model year | The Sea-Doo GTS appears in seven model years over two separate runs… |
| Sea-Doo GTS Pro 130 by model year | The Sea-Doo GTS Pro 130 is recorded here for a single model year, 2011. |
| Sea-Doo GTX 4-TEC by model year | The Sea-Doo GTX 4-TEC is recorded for five consecutive model years, 2002 to 2006. |
| Sea-Doo GTX 4-TEC LTD by model year | The Sea-Doo GTX 4-TEC LTD is recorded for two consecutive model years, 2006 to 2007. |
| Sea-Doo GTX 4-TEC LTD SCIC by model year | The Sea-Doo GTX 4-TEC LTD SCIC is recorded here for a single model year, 2005. |
| Sea-Doo GTX 4-TEC LTD Supercharged by model year | The Sea-Doo GTX 4-TEC LTD Supercharged is recorded for two consecutive model years… |
| Sea-Doo GTX 4-TEC Special Supercharged | The Sea-Doo GTX 4-TEC Special Supercharged is recorded here for a single model year, 2004. |
| Sea-Doo GTX 4-TEC Supercharged by model year | The Sea-Doo GTX 4-TEC Supercharged is recorded for four consecutive model years, 2003 to 2006. |
| Sea-Doo GTX 155 by model year | The Sea-Doo GTX 155 is recorded for twelve consecutive model years, 2008 to 2019. |
| Sea-Doo GTX 170 by model year | The Sea-Doo GTX 170 has been listed every year since 2020… |
| Sea-Doo GTX 215 by model year | The Sea-Doo GTX 215 appears in five model years over two separate runs… |
| Sea-Doo GTX 230 by model year | The Sea-Doo GTX 230 has been listed every year since 2018… |
| Sea-Doo GTX 300 by model year | The Sea-Doo GTX 300 has been listed every year since 2021… |
| Sea-Doo GTX by model year | The Sea-Doo GTX appears in eight model years over two separate runs… |
| Sea-Doo GTX DI by model year | The Sea-Doo GTX DI is recorded for four consecutive model years, 2000 to 2003. |
| Sea-Doo GTX iS 215 by model year | The Sea-Doo GTX iS 215 is recorded for two consecutive model years, 2010 to 2011. |
| Sea-Doo GTX Limited 215 by model year | The Sea-Doo GTX Limited 215 appears in four model years over two separate runs… |
| Sea-Doo GTX Limited 230 by model year | The Sea-Doo GTX Limited 230 is recorded for three consecutive model years, 2017 to 2019. |
| Sea-Doo GTX Limited 300 by model year | The Sea-Doo GTX Limited 300 is recorded for nine consecutive model years, 2016 to 2024. |
| Sea-Doo GTX Limited 325 by model year | The Sea-Doo GTX Limited 325 is recorded for two consecutive model years, 2025 to 2026. |
| Sea-Doo GTX Limited 350 by model year | The Sea-Doo GTX Limited 350 appears in this reference for one model year so far… |
| Sea-Doo GTX Limited by model year | The Sea-Doo GTX Limited is recorded for two consecutive model years, 1998 to 1999. |
| Sea-Doo GTX Limited iS 255 by model year | The Sea-Doo GTX Limited iS 255 is recorded here for a single model year, 2009. |
| Sea-Doo GTX Limited iS 260 by model year | The Sea-Doo GTX Limited iS 260 is recorded for eight consecutive model years… |
| Sea-Doo GTX Pro 130 by model year | The Sea-Doo GTX Pro 130 has been listed every year since 2021… |
| Sea-Doo GTX RFI by model year | The Sea-Doo GTX RFI is recorded for five consecutive model years, 1998 to 2002. |
| Sea-Doo GTX S 155 by model year | The Sea-Doo GTX S 155 is recorded for six consecutive model years, 2012 to 2017. |
| Sea-Doo GTX Wake by model year | The Sea-Doo GTX Wake is recorded for five consecutive model years, 2003 to 2007. |
| Sea-Doo HX by model year | The Sea-Doo HX is recorded for three consecutive model years, 1995 to 1997. |
| Sea-Doo LRV by model year | The Sea-Doo LRV is recorded for two consecutive model years, 2000 to 2001. |
| Sea-Doo LRV DI by model year | The Sea-Doo LRV DI is recorded for two consecutive model years, 2002 to 2003. |
| Sea-Doo model reference, 1988 to now | Every Sea-Doo model line A to Z, 123 in all, each with its own page. |
| Sea-Doo RX by model year | The Sea-Doo RX is recorded for three consecutive model years, 2000 to 2002. |
| Sea-Doo RX DI by model year | The Sea-Doo RX DI is recorded for four consecutive model years, 2000 to 2003. |
| Sea-Doo RXP 155 by model year | The Sea-Doo RXP 155 is recorded here for a single model year, 2008. |
| Sea-Doo RXP 215 by model year | The Sea-Doo RXP 215 is recorded for two consecutive model years, 2008 to 2009. |
| Sea-Doo RXP by model year | The Sea-Doo RXP is recorded for four consecutive model years, 2004 to 2007. |
| Sea-Doo RXP S1 350 by model year | The Sea-Doo RXP S1 350 appears in this reference for one model year so far… |
| Sea-Doo RXP-X 255 by model year | The Sea-Doo RXP-X 255 is recorded for four consecutive model years, 2008 to 2011. |
| Sea-Doo RXP-X 260 by model year | The Sea-Doo RXP-X 260 is recorded for four consecutive model years, 2012 to 2015. |
| Sea-Doo RXP-X 300 by model year | The Sea-Doo RXP-X 300 is recorded for eight consecutive model years, 2016 to 2023. |
| Sea-Doo RXP-X 325 by model year | The Sea-Doo RXP-X 325 is recorded for three consecutive model years, 2024 to 2026. |
| Sea-Doo RXP-X 350 by model year | The Sea-Doo RXP-X 350 appears in this reference for one model year so far, 2027. |
| Sea-Doo RXP-X Apex 300 by model year | The Sea-Doo RXP-X Apex 300 is recorded here for a single model year, 2023. |
| Sea-Doo RXT 215 by model year | The Sea-Doo RXT 215 is recorded for three consecutive model years, 2008 to 2010. |
| Sea-Doo RXT 230 by model year | The Sea-Doo RXT 230 is recorded for two consecutive model years, 2018 to 2019. |
| Sea-Doo RXT 260 by model year | The Sea-Doo RXT 260 is recorded for seven consecutive model years, 2011 to 2017. |
| Sea-Doo RXT by model year | The Sea-Doo RXT is recorded for three consecutive model years, 2005 to 2007. |
| Sea-Doo RXT iS 255 by model year | The Sea-Doo RXT iS 255 is recorded here for a single model year, 2009. |
| Sea-Doo RXT iS 260 by model year | The Sea-Doo RXT iS 260 is recorded for two consecutive model years, 2010 to 2011. |
| Sea-Doo RXT-X 255 by model year | The Sea-Doo RXT-X 255 is recorded for two consecutive model years, 2008 to 2009. |
| Sea-Doo RXT-X 260 by model year | The Sea-Doo RXT-X 260 is recorded for six consecutive model years, 2010 to 2015. |
| Sea-Doo RXT-X 300 by model year | The Sea-Doo RXT-X 300 is recorded for eight consecutive model years, 2016 to 2023. |
| Sea-Doo RXT-X 325 by model year | The Sea-Doo RXT-X 325 is recorded for three consecutive model years, 2024 to 2026. |
| Sea-Doo RXT-X 350 by model year | The Sea-Doo RXT-X 350 appears in this reference for one model year so far, 2027. |
| Sea-Doo RXT-X aS 260 by model year | The Sea-Doo RXT-X aS 260 is recorded for six consecutive model years, 2011 to 2016. |
| Sea-Doo RXX by model year | The Sea-Doo RXX is recorded here for a single model year, 2001. |
| Sea-Doo SAR 155 by model year | The Sea-Doo SAR 155 is recorded for five consecutive model years, 2014 to 2018. |
| Sea-Doo SP by model year | The Sea-Doo SP appears in seven model years over two separate runs… |
| Sea-Doo Spark 2up 60 by model year | The Sea-Doo Spark 2up 60 is recorded for ten consecutive model years, 2016 to 2025. |
| Sea-Doo Spark 2up 90 by model year | The Sea-Doo Spark 2up 90 is recorded for ten consecutive model years, 2016 to 2025. |
| Sea-Doo SPARK 2up by model year | The Sea-Doo SPARK 2up is recorded for two consecutive model years, 2014 to 2015. |
| Sea-Doo Spark 3up 90 by model year | The Sea-Doo Spark 3up 90 is recorded for ten consecutive model years, 2016 to 2025. |
| Sea-Doo SPARK 3up by model year | The Sea-Doo SPARK 3up is recorded here for a single model year, 2015. |
| Sea-Doo Spark 1000 ACE 60 by model year | The Sea-Doo Spark 1000 ACE 60 appears in this reference for one… |
| Sea-Doo Spark 1000 ACE 90 by model year | The Sea-Doo Spark 1000 ACE 90 appears in this reference for one… |
| Sea-Doo Spark 1000 ACE 110 by model year | The Sea-Doo Spark 1000 ACE 110 appears in this reference for one… |
| Sea-Doo Spark by model year | The Sea-Doo Spark is recorded here for a single model year, 2014. |
| Sea-Doo Spark for 2 - 60 by model year | The Sea-Doo Spark for 2 - 60 is recorded here for a single model year… |
| Sea-Doo Spark for 2 - 90 by model year | The Sea-Doo Spark for 2 - 90 is recorded here for a single model year… |
| Sea-Doo Spark for 3 - 90 by model year | The Sea-Doo Spark for 3 - 90 is recorded here for a single model year… |
| Sea-Doo Spark Trixx 1up by model year | The Sea-Doo Spark Trixx 1up is recorded for two consecutive model years, 2024 to 2025. |
| Sea-Doo Spark Trixx 2up by model year | The Sea-Doo Spark Trixx 2up is recorded for six consecutive model years, 2018 to 2023. |
| Sea-Doo Spark Trixx 3up by model year | The Sea-Doo Spark Trixx 3up is recorded for nine consecutive model years, 2017 to 2025. |
| Sea-Doo Spark Trixx by model year | The Sea-Doo Spark Trixx is recorded here for a single model year, 2017. |
| Sea-Doo Spark Trixx for 1 by model year | The Sea-Doo Spark Trixx for 1 is recorded here for a single model year, 2026. |
| Sea-Doo Spark Trixx for 3 by model year | The Sea-Doo Spark Trixx for 3 is recorded here for a single model year, 2026. |
| Sea-Doo Spark X Trixx by model year | The Sea-Doo Spark X Trixx appears in this reference for one model year so far… |
| Sea-Doo SPI by model year | The Sea-Doo SPI appears in two model years over two separate runs, 1993 and 1996. |
| Sea-Doo SPX by model year | The Sea-Doo SPX is recorded for seven consecutive model years, 1993 to 1999. |
| Sea-Doo WAKE 155 by model year | The Sea-Doo WAKE 155 is recorded for twelve consecutive model years, 2008 to 2019. |
| Sea-Doo Wake 170 by model year | The Sea-Doo Wake 170 has been listed every year since 2020… |
| Sea-Doo WAKE 215 by model year | The Sea-Doo WAKE 215 is recorded here for a single model year, 2008. |
| Sea-Doo Wake Pro 215 by model year | The Sea-Doo Wake Pro 215 is recorded for eight consecutive model years, 2009 to 2016. |
| Sea-Doo Wake Pro 230 by model year | The Sea-Doo Wake Pro 230 has been listed every year since 2017… |
| Sea-Doo XP by model year | The Sea-Doo XP appears in ten model years over two separate runs… |
| Sea-Doo XP DI by model year | The Sea-Doo XP DI is recorded for two consecutive model years, 2003 to 2004. |
| Sea-Doo XP Limited by model year | The Sea-Doo XP Limited is recorded for two consecutive model years, 1998 to 1999. |
| Sea-Doo XP800 by model year | The Sea-Doo XP800 is recorded here for a single model year, 1995. |
| The 30hp problem that shaped the first hull | Yamaha wanted fifty horsepower for its first sit-down craft and could only get thirty. |
| What changed, and when | Every correction and addition recorded in a page's dated change notes, newest first… |
| What one magazine says Kawasaki did | A Kawasaki line from 1973 to 2022… |
| What one reference says Sea-Doo did | A year-by-year Sea-Doo line from 1968 to 2027… |
| What Yamaha says its WaveRunners did | Yamaha Motor's own model history, 1986 to 2027, restated. |
| Where the sport came from | |
| Yamaha CROSSWAVE by model year | The Yamaha CROSSWAVE has been listed every year since 2026, two model years to date. |
| Yamaha EX by model year | The Yamaha EX is recorded for eight consecutive model years, 2017 to 2024. |
| Yamaha EX Sport by model year | The Yamaha EX Sport is recorded for eight consecutive model years, 2017 to 2024. |
| Yamaha EXR by model year | The Yamaha EXR is recorded for three consecutive model years, 2019 to 2021. |
| Yamaha FX by model year | The Yamaha FX is recorded for three consecutive model years, 2006 to 2008. |
| Yamaha FX Cruiser by model year | The Yamaha FX Cruiser is recorded for six consecutive model years, 2003 to 2008. |
| Yamaha FX Cruiser High Output by model year | The Yamaha FX Cruiser High Output is recorded for five consecutive model years… |
| Yamaha FX Cruiser HO by model year | The Yamaha FX Cruiser HO appears in five model years over two separate runs… |
| Yamaha FX Cruiser SHO by model year | The Yamaha FX Cruiser SHO is recorded for nine consecutive model years, 2008 to 2016. |
| Yamaha FX Cruiser SVHO by model year | The Yamaha FX Cruiser SVHO has been listed every year since 2014… |
| Yamaha FX High Output by model year | The Yamaha FX High Output is recorded for five consecutive model years, 2004 to 2008. |
| Yamaha FX HO by model year | The Yamaha FX HO has been listed every year since 2009… |
| Yamaha FX Limited by model year | The Yamaha FX Limited is recorded here for a single model year, 2006. |
| Yamaha FX Limited SVHO by model year | The Yamaha FX Limited SVHO appears in eight model years over two separate runs… |
| Yamaha FX SHO by model year | The Yamaha FX SHO is recorded for eight consecutive model years, 2008 to 2015. |
| Yamaha FX SVHO by model year | The Yamaha FX SVHO has been listed every year since 2014… |
| Yamaha FX-1 by model year | The Yamaha FX-1 is recorded for two consecutive model years, 1994 to 1995. |
| Yamaha FX140 by model year | The Yamaha FX140 is recorded for four consecutive model years, 2002 to 2005. |
| Yamaha FZR by model year | The Yamaha FZR is recorded for seven consecutive model years, 2010 to 2016. |
| Yamaha FZR SHO by model year | The Yamaha FZR SHO is recorded here for a single model year, 2009. |
| Yamaha FZS by model year | The Yamaha FZS is recorded for eight consecutive model years, 2009 to 2016. |
| Yamaha GP HO by model year | The Yamaha GP HO has been listed every year since 2024… |
| Yamaha GP SVHO by model year | The Yamaha GP SVHO has been listed every year since 2025… |
| Yamaha GP760 by model year | The Yamaha GP760 is recorded for five consecutive model years, 1997 to 2001. |
| Yamaha GP800 by model year | The Yamaha GP800 is recorded for three consecutive model years, 1998 to 2000. |
| Yamaha GP800R by model year | The Yamaha GP800R is recorded for two consecutive model years, 2001 to 2002. |
| Yamaha GP1200 by model year | The Yamaha GP1200 is recorded for four consecutive model years, 1997 to 2000. |
| Yamaha GP1200R by model year | The Yamaha GP1200R is recorded for three consecutive model years, 2000 to 2002. |
| Yamaha GP1300R by model year | The Yamaha GP1300R is recorded for six consecutive model years, 2003 to 2008. |
| Yamaha GP1800 by model year | The Yamaha GP1800 is recorded for two consecutive model years, 2017 to 2018. |
| Yamaha GP1800R by model year | The Yamaha GP1800R is recorded here for a single model year, 2019. |
| Yamaha GP1800R HO by model year | The Yamaha GP1800R HO is recorded for four consecutive model years, 2020 to 2023. |
| Yamaha GP1800R SVHO by model year | The Yamaha GP1800R SVHO is recorded for five consecutive model years, 2020 to 2024. |
| Yamaha JetBlaster 2-UP by model year | The Yamaha JetBlaster 2-UP has been listed every year since 2025… |
| Yamaha JetBlaster by model year | The Yamaha JetBlaster is recorded for three consecutive model years, 2022 to 2024. |
| Yamaha JetBlaster DLX 2-UP by model year | The Yamaha JetBlaster DLX 2-UP has been listed every year since 2026… |
| Yamaha JetBlaster DLX 3-UP by model year | The Yamaha JetBlaster DLX 3-UP has been listed every year since 2026… |
| Yamaha JetBlaster LTD by model year | The Yamaha JetBlaster LTD has been listed every year since 2025… |
| Yamaha JetBlaster PRO 2-UP by model year | The Yamaha JetBlaster PRO 2-UP has been listed every year since 2026… |
| Yamaha JetBlaster PRO 3-UP by model year | The Yamaha JetBlaster PRO 3-UP has been listed every year since 2025… |
| Yamaha model reference, 1987 to now | Every Yamaha model line A to Z, 93 in all, each with its own page. |
| Yamaha News PWC index | Issues of Yamaha's international dealer magazine whose index names a personal watercraft. |
| Yamaha on its own machines, 2003 to 2009 | Yamaha published a dealer magazine for decades… |
| Yamaha SuperJet (4-stroke) by model year | The Yamaha SuperJet (4-stroke) is recorded here for a single model year, 2021. |
| Yamaha SuperJet (SJ650) by model year | The Yamaha SuperJet (SJ650) is recorded here for a single model year, 1990. |
| Yamaha SuperJet (SJ700B-M) by model year | The Yamaha SuperJet (SJ700B-M) is recorded here for a single model year, 2013. |
| Yamaha SuperJet 650 (SJ650P) by model year | The Yamaha SuperJet 650 (SJ650P) is recorded here for a single model year, 1991. |
| Yamaha SuperJet 650 (SJ650Q) by model year | The Yamaha SuperJet 650 (SJ650Q) is recorded here for a single model year, 1992. |
| Yamaha SuperJet 650 (SJ650R) by model year | The Yamaha SuperJet 650 (SJ650R) is recorded here for a single model year, 1993. |
| Yamaha SuperJet 701 (round-nose, 2008 hull) | The Yamaha SuperJet 701 (round-nose, 2008 hull) is recorded for two consecutive model years… |
| Yamaha SuperJet 701 (round-nose) by model year | The Yamaha SuperJet 701 (round-nose) is recorded for twelve consecutive model years, 1996 to 2007. |
| Yamaha SuperJet 701 (square-nose) by model year | The Yamaha SuperJet 701 (square-nose) is recorded for two consecutive model years, 1994 to 1995. |
| Yamaha SuperJet by model year | The Yamaha SuperJet appears in ten model years over four separate runs, 2010 to 2011… |
| Yamaha SUV1200 by model year | The Yamaha SUV1200 is recorded for five consecutive model years, 1999 to 2003. |
| Yamaha V1 by model year | The Yamaha V1 is recorded here for a single model year, 2016. |
| Yamaha V1 Sport by model year | The Yamaha V1 Sport is recorded here for a single model year, 2016. |
| Yamaha V2 by model year | The Yamaha V2 is recorded here for a single model year, 2015. |
| Yamaha V2 Sport by model year | The Yamaha V2 Sport is recorded here for a single model year, 2015. |
| Yamaha VX by model year | The Yamaha VX appears in sixteen model years over three separate runs, 2007 to 2017… |
| Yamaha VX Cruiser by model year | The Yamaha VX Cruiser has been listed every year since 2007… |
| Yamaha VX Cruiser HO by model year | The Yamaha VX Cruiser HO has been listed every year since 2016… |
| Yamaha VX Deluxe by model year | The Yamaha VX Deluxe has been listed every year since 2007… |
| Yamaha VX Limited by model year | The Yamaha VX Limited appears in eight model years over two separate runs… |
| Yamaha VX Limited HO by model year | The Yamaha VX Limited HO has been listed every year since 2022… |
| Yamaha VX Sport by model year | The Yamaha VX Sport appears in three model years over two separate runs… |
| Yamaha VX-C by model year | The Yamaha VX-C appears in two model years over two separate runs, 2022 and 2026. |
| Yamaha VX110 by model year | The Yamaha VX110 is recorded here for a single model year, 2005. |
| Yamaha VX110 Deluxe by model year | The Yamaha VX110 Deluxe is recorded for two consecutive model years, 2005 to 2006. |
| Yamaha VX110 Sport by model year | The Yamaha VX110 Sport is recorded here for a single model year, 2006. |
| Yamaha VX700 by model year | The Yamaha VX700 is recorded here for a single model year, 2006. |
| Yamaha VX700S by model year | The Yamaha VX700S is recorded here for a single model year, 2012. |
| Yamaha VXR by model year | The Yamaha VXR is recorded for nine consecutive model years, 2011 to 2019. |
| Yamaha VXR Pro (WRB700) by model year | The Yamaha VXR Pro (WRB700) is recorded for two consecutive model years, 1993 to 1994. |
| Yamaha VXS by model year | The Yamaha VXS is recorded for six consecutive model years, 2011 to 2016. |
| Yamaha WaveBlaster by model year | The Yamaha WaveBlaster appears in five model years over two separate runs… |
| Yamaha WaveBlaster II by model year | The Yamaha WaveBlaster II is recorded for three consecutive model years, 1996 to 1998. |
| Yamaha WaveJammer (WJ500) by model year | The Yamaha WaveJammer (WJ500) is recorded for four consecutive model years, 1987 to 1990. |
| Yamaha WaveRaider 700 by model year | The Yamaha WaveRaider 700 is recorded for four consecutive model years, 1994 to 1997. |
| Yamaha WaveRaider 760 by model year | The Yamaha WaveRaider 760 is recorded for two consecutive model years, 1996 to 1997. |
| Yamaha WaveRaider 1100 by model year | The Yamaha WaveRaider 1100 is recorded for two consecutive model years, 1995 to 1996. |
| Yamaha WaveRaider Deluxe by model year | The Yamaha WaveRaider Deluxe is recorded here for a single model year, 1995. |
| Yamaha WaveRunner (WR500) by model year | The Yamaha WaveRunner (WR500) is recorded for seven consecutive model years, 1987 to 1993. |
| Yamaha WaveRunner III by model year | The Yamaha WaveRunner III appears in six model years over two separate runs… |
| Yamaha WaveRunner III GP by model year | The Yamaha WaveRunner III GP is recorded for two consecutive model years, 1994 to 1995. |
| Yamaha WaveRunner LX by model year | The Yamaha WaveRunner LX is recorded for four consecutive model years, 1990 to 1993. |
| Yamaha WaveRunner VXR650 by model year | The Yamaha WaveRunner VXR650 is recorded for four consecutive model years, 1992 to 1995. |
| Yamaha WaveVenture 700 by model year | The Yamaha WaveVenture 700 appears in three model years over two separate runs… |
| Yamaha WaveVenture 760 by model year | The Yamaha WaveVenture 760 is recorded here for a single model year, 1997. |
| Yamaha WaveVenture 1100 by model year | The Yamaha WaveVenture 1100 is recorded for two consecutive model years, 1996 to 1997. |
| Yamaha XL700 by model year | The Yamaha XL700 is recorded for six consecutive model years, 1998 to 2003. |
| Yamaha XL760 by model year | The Yamaha XL760 is recorded for two consecutive model years, 1998 to 1999. |
| Yamaha XL800 by model year | The Yamaha XL800 is recorded for two consecutive model years, 2000 to 2001. |
| Yamaha XL1200 by model year | The Yamaha XL1200 is recorded here for a single model year, 1998. |
| Yamaha XL1200 Limited by model year | The Yamaha XL1200 Limited is recorded for two consecutive model years, 1999 to 2000. |
| Yamaha XLT800 by model year | The Yamaha XLT800 is recorded here for a single model year, 2002. |
| Yamaha XLT1200 by model year | The Yamaha XLT1200 is recorded for three consecutive model years, 2001 to 2003. |
Tuning
| Page | What it holds |
|---|---|
| ADA Racing dome, compression and octane | 34 rows of engine figures, with the source named and the conditions they hold under stated. |
| Carburettor reference | 2 articles on carburettor, with the basis for every claim stated. |
| Class rules reference | 3 articles on class rules, with the basis for every claim stated. |
| Compression and octane are one decision | Raising compression is the cheapest real power on a two-stroke… |
| Engine reference | 3 articles on engine, with the basis for every claim stated. |
| Exhaust reference | 1 article on exhaust, with the basis for every claim stated. |
| Group K's carburettor setup sequence | Group K's order for setting up a watercraft carburettor, step by step… |
| How a jet pump moves the craft | A stand-up moves by throwing water out of the back. |
| How the two-stroke cycle works | A two-stroke fires once every time the crankshaft turns. |
| Ignition reference | 1 article on ignition, with the basis for every claim stated. |
| Mikuni carburettor rebuild kit applications | 65 rows of carburettor figures, with the source named and the conditions they hold under stated. |
| Mikuni Super BN needle and arm spring | 4 rows of carburettor figures, with the source named and the conditions they hold under stated. |
| Mikuni Super BN, circuit by throttle opening | 5 rows of carburettor figures, with the source named and the conditions they hold under stated. |
| Parts that fit more than one machine | Where a manufacturer lists one part number against several machines… |
| Pump reference | 2 articles on pump, with the basis for every claim stated. |
| Solas impeller pitch, two-stroke stand-ups | 20 rows of pump figures, with the source named and the conditions they hold under stated. |
| Spec tables | Every number table in the tuning reference, A to Z. |
| SuperJet 701 fasteners, where two sources agree | 8 rows of engine figures, with the source named and the conditions they hold under stated. |
| Symptoms | What the ski is doing wrong, and the articles that explain why. |
| Tuning guides for two-stroke watercraft | How the parts work and why a setup is the way it is. |
| Vintage Ski against Vintage Ski Limited | Two IJSBA classes run the same Kawasaki 550 cases in the same… |
| What a reed valve does | A reed valve is a one-way door into the crankcase. |
| What a spark plug can and cannot tell you | The plug is the only part of a running engine you can… |
| What an aftermarket exhaust pipe actually does | A tuned pipe does not add power everywhere. |
| What an impeller pitch number actually means | Pitch is the bite the impeller takes out of the water… |
| What is actually legal in IJSBA Ski Lites | Ski Lites is a closed list… |
| What is legal in UIM Ski GP3 | GP3 is the strictest exhaust rule in the UIM Ski Division… |
| What pop-off pressure actually is | Pop-off is the pressure it takes to unseat the needle in a diaphragm carburettor… |
Build Archive
| Page | What it holds |
|---|---|
| Build Archive: builds other people ran | Documented builds published by named builders, with their own part numbers… |
| Formula 650, 1990 Kawasaki 650 SX | Group K published this 1990 Kawasaki 650 SX build with 21 named components. |
| Formula 800, 1994 Yamaha SuperJet | Group K published this 1994 Yamaha SuperJet build with 17 named components. |
| GP1800R SVHO 350 Limited Edition, 2023 Yamaha | RIVA Racing published this 2023 Yamaha GP1800R SVHO build with 22 named components. |
| JetBlaster Custom, 2025 Yamaha | RIVA Racing published this 2025 Yamaha JetBlaster build with 11 named components. |
| Project Buoy Bandit, 2018 Kawasaki SX-R 1500 | RIVA Racing published this 2018 Kawasaki SX-R 1500 build with 13 named components. |
| Resto-mod practice ski, Sea-Doo HX | Group K published this 1995 Sea-Doo HX build with 15 named components. |
| Sleeper Kit, 1997 Sea-Doo GSX 785 | Group K published this 1997 Sea-Doo GSX build with 10 named components. |
| The Neon Machine, 2021 Sea-Doo RXP-X 350 | RIVA Racing published this 2021 Sea-Doo RXP-X 350 LTD build with 15 named components. |
Words and Culture
| Page | What it holds |
|---|---|
| Etiquette, as the rulebooks and press record it | Most of what riders call etiquette was common enough to get written into the rulebooks… |
| Films, programmes and tapes | |
| Glossary: the words of the sport | A glossary of vintage jet ski racing… |
| The media that recorded the sport | The magazines, newsletters, newspapers, tapes, websites, forums and games that recorded vintage jet ski racing… |
| Words and Culture: glossary, etiquette, media | The culture of vintage jet ski racing as documents record it… |
| Words we do not use, and why | The words of jet ski racing this site refuses because no search… |
Key Figures
| Page | What it holds |
|---|---|
| Algo Kuus, organiser | Listed by the UIM as a Safety Commissioner of its Aquabike Committee… |
| Amy Green, organiser | Appointed the IJSBA's interim racer representative in 2005… |
| Anibal Aliaga Swidin, organiser | Listed as president of the Peruvian affiliate in the IJSBA's rule books… |
| Arno Olbricht, parts maker | Called the founder of Hydro-Turf in October 2020 by a trade magazine… |
| Bela Czeller, racer | Printed first in six class lists of the Hungarian jet-ski championship from 2000 to 2003… |
| Bill Chapin, tuner, parts maker and inventor | Signed R&D Racing Products' 1998 page as its President… |
| Billy Womack, racer | Inducted in 2008 as the first member of the PWCOFFSHORE offshore racing hall of fame… |
| Biorn Tangeland, organiser | Appointed managing director of the IJSBA in a post dated January 2004, after its re-organisation… |
| Blake Corning, organiser | Named by the IJSBA as its Head of Event Operations and Associate Competition Manager… |
| Brian Baldwin, racer and performance shop | Won Pro-Am Runabout 800 at the 2011 World Finals and Pro-Am Runabout… |
| Bruce Stjernstrom, organiser | Named vice president of the International Jet Ski Boating Association in 1987… |
| CarolAnne Giustina, organiser | Listed in the IJSBA's rule books of 2010 to 2012 and 2014… |
| Chaowalit Kuajaroon, racer | Won Open Sport Superstock at the 2004 IJSBA World Finals… |
| Chokuthit Molee, racer | Listed first in the Final of Pro-Am Runabout 800 Superstock… |
| Chris Fischetti, racer and organiser | Placed second in Pro Runabout 785 SS at the 1999 World Finals… |
| Chris MacClugage, racer and parts maker | Ranked first in Pro Runabout 1200 SS at the 1999 World Finals… |
| Christy Carlson, racer | Ranked first in Pro-Am Women Runabout on the 1999 World Finals overall results… |
| CJ Lammers, parts maker | Named as President of SBT, Inc., the Clearwater engine remanufacturer… |
| Clayton J. Jacobson, inventor | Named inventor on US patents for jet-driven craft ridden standing or seated… |
| Craig Warner, racer | Won Pro Runabout Open at the 2008 World Finals and… |
| Csaba Gerencser, racer | Printed first in twelve class lists of the Hungarian jet-ski championship between 1996 and 2005… |
| Cyrille Lemoine, racer | Listed by the UIM as Aquabike world champion in runabout parallel slalom… |
| Dave Bamdas, performance shop and parts maker | Called the boss man at Riva Yamaha in 1996… |
| Don Moyle, parts maker and inventor | Named with Glen Dilworth as co-inventor on four US patents granted… |
| Dustin Farthing, racer and organiser | Won Pro-Am Runabout Modified at the 2004 World Finals on the association's sheet… |
| Emi Kanamori, racer | First in Pro-Am Women Ski LTD on the 2015 World Finals sheet… |
| Emma-Nellie Ortendahl, racer | Listed by the UIM as Aquabike World champion in Ski Ladies GP1… |
| Eric Lagopoulos, racer | Listed first in Runabout Open Slalom on the association's 2008 World Finals results, printed Lagpoulos… |
| Eric Malone, racer and hull builder | Won Pro Freestyle at the 1999 and 2004 World Finals on the association's held sheets… |
| Erki Laiakask, racer | Listed first in RUNABOUT GP on the Estonian championship's season tables of 2013… |
| Francisco Pita, organiser | Thanked by the IJSBA in 2005 for serving on its transition committee… |
| Gary Coffman, parts maker | Cycle News called Gary Coffman owner of Coffman's Exhaust Systems in 1992… |
| Glen Dilworth, parts maker and inventor | Partner in Jet Dynamics, the Idaho maker of personal watercraft intake grates and ride plates… |
| Glenn Dickinson, parts maker and inventor | Signed R&D Racing Products' 1998 page as its CEO… |
| Greg Pickren, parts maker | Named as the person who formed Short Block Technologies in 1997… |
| Gyorgy Kasza, racer | Won Pro Runabout and Runabout Open Slalom at the 2015 World Finals… |
| Harry Goatcher, racer | Printed in 1987 results and rankings in a 1988 magazine… |
| Harry Klemm, performance shop | Named with Group K, a personal watercraft performance shop… |
| Jacque Bryant, organiser | Named a Race Director of the IJSBA's 2006 World Finals… |
| Janis Uzars, racer | Listed by the UIM as Aquabike Continental champion in Ski Veterans GP1… |
| Jean-Francois Modoux, organiser | Secretary of the UIM's International Aquabike Commission on its pages of 2002 and 2004… |
| Jeff Jacobs, racer | Inducted into the association's hall of fame in 2006 and named… |
| Jeremy Poret, racer | Listed by the UIM as Aquabike world champion in Ski Division GP1 for 2011, 2012… |
| Jessica Chavanne, racer | |
| Jim Russell, organiser | President of Desert Steel Motorsports… |
| Joe Heim, organiser | Elected to the IJSBA board for 2005 as the watercraft manufacturers' director… |
| Karine Paturel, racer | Inducted into the IJSBA hall of fame in 2006… |
| Ken Stuart, parts maker | One of the IJSBA hall of fame's two Lifetime Achievers of 2007 and… |
| Kenneth F. Klus, parts maker and inventor | Registrant of the OCEAN PRO PRODUCTS trademark from 1987 and later… |
| Kevin Reiterer, racer | Listed by the UIM as Aquabike world champion in Ski Division GP1 for 2015… |
| Key Figures: racers, tuners, builders, makers | Racers, tuners, builders, inventors and organisers of personal watercraft racing… |
| Kim Bushong, racer | First in the order of finish at the 2010 Long Beach… |
| Krista Uzare, racer | Listed by the UIM as Aquabike World champion in Ski Ladies GP1 for 2018… |
| Kylie Ellmers, racer | Won Women Runabout at the 2017 IJSBA World Finals and Pro-Am Women… |
| Larry Rippenkroeger, racer | A 1988 magazine's results lines print him second under Slalom and Superstock… |
| Laszlo Sumegi, racer | Printed first in fifteen class lists of the Hungarian jet-ski championship between 1992 and 2002… |
| Laszlo Szabo, racer | Printed first in fourteen class lists of the Hungarian jet-ski championship from 1997 to 2004… |
| Lee Stone, racer and hull builder | Won Pro Freestyle at the 2015 World Finals and the 2015 World Cup in Thailand… |
| Linda Mellor, organiser | Thanked by the IJSBA in 2005 for serving on its transition committee from New Zealand… |
| Lisa Dermott, organiser | Listed as president of the New Zealand Jet Sports Boating Association… |
| Lou Peralta, organiser | Inducted in 2019 into the PWCOFFSHORE hall of fame as its first race promoter… |
| Luca Filiberti, organiser | Chairman of the UIM's Aquabike Committee in its documents from 2017 to 2026… |
| Lynn Bamdas, performance shop | Named with Steve Bamdas by two magazines, in 2015 and 2018… |
| Margus Kesküla, racer | Listed first in runabout classes on the Estonian championship's season tables of 2008, 2010, 2013… |
| Marko Männi, organiser | Named vice race director of the Nordic Championship 2018 at Pärnu… |
| Markus Lutsokert, racer | Listed first in SKI GP and SKI STOCK on the Estonian championship's 2013 season table… |
| Mickael Poret, racer | Listed by the UIM as Aquabike world champion in Ski Division GP1… |
| Mike Follmer, organiser and racer | Named in 2008 as a co-promoter of the Mark Hahn Memorial 300… |
| Mike Klippenstein, racer | Won ski and sport classes at the World Finals in 1999, 2004… |
| Miklos Benyo, racer | Printed first in seven class lists of the Hungarian jet-ski championship from 1994 to 1997… |
| Mohammed Burbayea, racer | Won Endurance and GP Runabout at the 2015 World Finals… |
| Nick Barton, hull builder | Called owner and founder of Krash Industries by The Watercraft Journal in 2017… |
| Nicolas Rius, racer | Won Pro Ski 785 SS at the 1999 World Finals and Masters… |
| Patrick Mell, organiser | Hired in 2004 to organise and manage the APBA's personal watercraft racing division… |
| Rashid Al Mulla, racer | Listed by the UIM as its Aquabike Pro Freestyle world champion… |
| Richard Payne, racer | An Australian rider printed second in freestyle and ninth in the rankings… |
| Rick Roy, hull builder and parts maker | Founder and owner of Rickter-RRP, maker of Rickter stand-up and freestyle hulls and RRP parts… |
| Ross Liberty, parts maker and inventor | Owner of Factory Pipe, the exhaust maker… |
| Ross Wallach, organiser | Printed by the IJSBA as President of RPM Racing Enterprises… |
| Sandor Vagott, organiser | Printed as vice-president of the Hungarian jet-ski federation in its 2006 book… |
| Scott Frazier, organiser | Elected the IJSBA board's first director representing the racers in 2005… |
| Shawn Alladio, racer and organiser | Raced the Long Beach to Catalina offshore race in Pro/Am Open in 2008… |
| Stefania Balzer, racer | |
| Steve Bamdas, performance shop | Named by magazines in 2015 and 2018, with Lynn Bamdas… |
| Steve Laham, performance shop | Original owner of Team Butch… |
| Stian Schjetlein, racer | |
| Taiji Yamamoto, racer | Placed first in Pro Freestyle at the Jet Ski World Cup in 2019… |
| Tera Laho, racer | Inducted into the association's hall of fame in 2006… |
| Urmas Tahk, organiser | Named chief judge or race director in the organisers' guides of 21… |
| Veljko Sukalo, organiser and racer | Listed as president of the Serbian jet ski and powerboat association… |
| Yeun-Junn Lin, inventor | Named inventor on US patents of 1992 to 2007 for jet-pump parts of motorboats… |
| Yousef Al Abdulrazzaq, racer | Listed by the UIM as Aquabike world champion in Runabout GP1 for 2013, 2015, 2016… |
| Yuki Kurahashi, racer | Printed second in Pro-Am Women Ski Limited at the 2014 Jet Ski… |
| Yves Van Heers, organiser | European Race Director and Coordinator of the IJSBA's 2000 Euro Tour… |
About this site
| Page | What it holds |
|---|---|
| Accessibility | What this site is built to (WCAG 2.2 AA)… |
| Ask a question | Ask about a class rule, a tuning article or a model record. |
| Privacy | What the enquiry form collects, where it goes… |
| Watercraft class legality, tuning, model history | Class legality across three sanctioning bodies… |
752 pages · 8 sections