2004 Ski-Doo REV Series Factory Service Manual, Page 86Get this manual
Section 03 TROUBLESHOOTING Subsection 03 (TRANSMISSION AND BRAKE SYSTEM)
SYMPTOM
BELT DISINTEGRATION
CONDITION
TESTINSPECTION
NORMAL USE 1Check drive belt identification numberaExcessive belt speedWrong type of beltReplace with proper type of belt (refer to TECHNICAL DATA)2Check if pulley halves are cleanaOil on pulley surfacesClean pulley surfaces with fine emery cloth and wipe clean using pulley flange cleaner (PN 413 711 809) and cloth
SYMPTOM
BELT CORD POP OUT
CONDITION
TESTINSPECTION
NORMAL USE 1Check pulley alignmentaPulley misalignmentAlign pulley according to specifications (refer to TECHNICAL DATA)