2003 Ski-Doo REV Series Factory Shop Manual, Page 172Get this manual
Section 05 TRANSMISSION Subsection 03 (DRIVE PULLEY)
CLEANING
5,6, Fixed and Sliding Half
Clean pulley faces and shaft with fine steel wool and dry cloth
9,12, Fitting Bolt Ass'y and Flanged Bushing
Check for wear, replace as required
24,25, O-Ring and Slider Shoe
Check if O-rings are cracked, cut or crushedReplace as requiredCheck slider shoes for wearReplace if groove is not apparent on top
5, Fixed Half and Crankshaft End