1997 Ski-Doo Factory Shop Manual Volume Two, Page 149Get this manual
Section 04 TRANSMISSION Sub-Section 03 (DRIVE PULLEY)
19, Spring Cover Ass'y
It is pushed by clutch spring pressure
WARNING
Using paper towel with cleaning solvent (PN 413 7082 00), clean crankshaft tapered end and the taper inside the fixed half of the drive pulley, crankshaft threads and retaining screw threads
Clutch spring is very strongNever attempt to remove spring cover without the recommended toolsUse spring compressor (PN 529 0151 00)
WARNING
This procedure must be performed in well ventilated area
CAUTION
Avoid contact between cleaner and crankshaft seal because damage may occurRemove all harden oil deposits that have baked on crankshaft and pulley tapered surfaces with coarse or medium steel wool andor sand paper no600