2005 Ski-Doo Racing Handbook, Page 54Get this manual
SECTION 03CHASSIS PREPARATION
Compression Whenever tuning for more compression dampening always use 30 mm (1.18 in) shims against piston to properly close piston orifice holesTwo thin shims will offer more control than one thick shim of the equal thicknessNOTE: When tuning for less dampening it is important to remember, never use less than shims against pistonThis will guard against fatigue breakageFewer spacer shims will result in more high speed dampeningA minimum of 0-114 mm (.0045 in) clearance should be allowed between shim stack and compression valve stopperUse at least one shim of 12 .114If the seal carrier assembly is replaced, use seal pilot to guide seal over damper shaftLubricate seal carrier guide pilot before useCAUTION: Failure to use seal pilot will result in seal damageReassemble damper rod assembly, taking care to properly assemble shim packs as required for your dampening needs Ensure that the shaft piston is installed with the slitslarger intake holes facing the rebound shim stack