2003 Ski-Doo ZX Series Factory Shop Manual, Page 215Get this manual
Section 05 TRANSMISSION Subsection 03 (DRIVE PULLEY)
Use spring compressor (PN 529 035 524)Install support guide
CLEANING
5,6, Fixed and Sliding Half
Clean pulley faces and shaft with fine steel wool and dry cloth
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 areaCAUTION: Avoid contact between cleaner and crankshaft seal because damage may occurRemove all hardened oil deposits that have baked on crankshaft and pulley tapered surfaces with coarse or medium steel wool andor sand paper no600CAUTION: Do not use any other type of abrasiveReclean mounting surfaces with paper towel and cleaning solventWipe off the mounting surfaces with clean, dry paper towelCAUTION: Mounting surfaces must be free of any oil, cleaner or towel residue