Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (FSSK.1.1); FSSK.6.2 also bars internal modification of the reduction nozzle.
- Fixed Steering Ski Stock · FSSK
IJSBA · Driveline
Aftermarket pump nozzle, venturi, directional nozzle, IJSBA
Global cap: the complete pump and nozzle assembly may not exceed 50.00mm (1.97 in) longer than OEM.
Where it stands, class by class
20 classes, grouped where the same rule gives the same answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules.
What each answer below means
- Not permitted, not listed in the rules
- Treat it as coming off. The class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list, so this is our reading rather than a rule we can quote at you.
- Legal, with conditions
- Keep it, but measure it: the rules permit this part only inside stated limits.
Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (RRL.1.1); RRL.6.2 also bars internal modification of the reduction nozzle.
- Runabout Rec Lites · RRL
Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (SSK.1.1); SSK.6.2 also bars internal modification of the reduction nozzle.
- Ski Stock · SSK
Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (FSKL.1.1); FSKL.6.2 also bars internal modification of the reduction nozzle.
- Four Stroke Ski Lites · FSKL
Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (RAS.1.1); RAS.10.2 also bars internal modification of the reduction nozzle.
- Runabout Stock · RAS
Not permitted, not listed in the rules 1 class
Not listed in this class document, so illegal under the closed-list rule (SKL.1.1); SKL.8.2 also bars internal modification of the reduction nozzle.
- Ski Lites · SKL
Legal, with conditions 7 classes
Permitted, subject to the limits IJSBA applies to every class, namely the sound ceiling, the hull repair tolerance, and the intake grate and sponson dimensions.
- Runabout Limited · RAL
- Vintage SC · VSC
- Runabout Superstock · RSS
- Freestyle · FREST
- Ski Grand Prix · SKGP
- Sport GP · SPGP
- Runabout Open / GP · ROP
Legal, with conditions 2 classes
Max 50.00mm over OEM.
- Vintage Ski Limited · VSKL.6.1
- Vintage X2 · VX2
Legal, with conditions 1 class
Two-stroke only.
Legal, with conditions 1 class
No spacers or extended nozzles that push past 50.00mm.
- Sport Spec · section headings, no numbered rules
Legal, with conditions 1 class
IJSBA-approved venturi and directional nozzle. · SKM.9.1
Legal, with conditions 1 class
Max 50.00mm over OEM overall. · SKSS.6.1
Legal, with conditions 1 class
VSK caps the assembly at 139.7mm (5.5 in) FROM THE TRANSOM rather than as a delta from OEM. Verify.
- Vintage Ski · VSK
Aftermarket pump nozzle, venturi, directional nozzle: if the rule your class applies reads differently to you, or the rulebook has changed since this was read, ask. We answer with the section we read it from, or that we have not read it. Ask a rules question.
Every IJSBA class · where the rulebooks differ · checks on parts the shop sells · how this site reads a rulebook.
Driveline · two and four stroke · legal in 14 of 20 answered, all with conditions