OEM part required 3 classes
This class requires the OEM part.
- Fixed Steering Ski Stock · FSSK
- Four Stroke Ski Lites · FSKL
- Runabout Naturally Aspirated · RNA
IJSBA · Engine
Aftermarket camshafts
Cam timing and cams themselves are governed separately in the stock tiers.
Where it stands, class by class
14 classes, grouped by the answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules.
OEM part required 1 class
Camshafts must remain stock; timing adjustment allowed. · RRL.3.4
OEM part required 1 class
Camshaft replacement prohibited. Only bearings, timing changes and adjustable sprockets allowed. · SSK.3.3
OEM part required 1 class
RAS.3.4
- Runabout Stock · RAS
OEM part required 1 class
Camshaft stock. Timing may be changed and adjustable sprockets fitted in the 1101-1500cc category.
- Ski Modified · SKM
Legal 2 classes
Explicitly permitted by this class document.
- Freestyle · FREST
- Ski Grand Prix · SKGP
Legal 1 class
Camshafts may be modified or aftermarket.
- Runabout Limited · RAL
Legal 1 class
SKSS.3
- Ski Superstock · SKSS
Legal 1 class
RSS.3.9
- Runabout Superstock · RSS
Legal 1 class
SPGP.4.3
- Sport GP · SPGP
Legal 1 class
Plus aftermarket cam gears, tensioners, chain or belt. Camshaft COUNT must match original and conversion to solenoid actuation is prohibited.
- Runabout Open / GP · ROP
Aftermarket camshafts: 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 · signed checks on parts the shop sells.
Engine · four stroke · legal outright in 7 of 14