2004 Ski-Doo REV Series Factory Service Manual, Page 84Get this manual
Section 03 TROUBLESHOOTING Subsection 03 (TRANSMISSION AND BRAKE SYSTEM)
SYMPTOM
BELT GLAZED EXCESSIVELY OR HAVING BAKED APPEARANCE
CONDITION
TESTINSPECTION
NORMAL USE 1Check if drive pulley bushings are wornaSlipping due to insufficient pressure on belt sidesReplace bushing2Check condition of drive pulley fixed half shaftaSlipping due to rusted drive or driven pulley shaftsClean shaft with fine steel wool3Check if pulley halves are cleanaSlipping due to oily pulley surfacesClean pulley halves4Check pulley calibrationaSlipping due to improper pulley calibrationCalibrate according to specifications