1999 Ski-Doo Factory Shop Manual Volume Two, Page 208Get this manual
Section 05 TRANSMISSION Subsection 03 (DRIVE PULLEY)
Install support guide
5, Fixed Half and Crankshaft End
Parts must be at room temperature before cleaningUsing paper towel with cleaning solvent, clean crankshaft tapered end and the taper inside the fixed half of the drive pulley, crankshaft threads and retaining screw threads-
WARNING
This procedure must be performed in wellventilated area
CAUTION
Avoid contact between cleaner and crankshaft seal because damage may occurA03D3EA
1Support guide
Install sliding half then second support guideThese support guides will prevent bushing damages
Remove all hardened oil deposits that have baked on crankshaft and pulley tapered surfaces with coarse or medium steel wool andor sand paper no600