2002 Ski-Doo Shop Manual Volume Two, Page 81Get this manual
Subsection 04
Section 03 TROUBLESHOOTING (TRANSMISSION AND BRAKE SYSTEMS)
SYMPTOM CONDITION TestInspection
SHEARED COGS, COMPRESSION SECTION FRACTURED OR TORNNORMAL USE1Check drive belt rotational directionaImproper belt installationReplace2Check if drive belt rubs against componentsaBelt rubbing on stationary objectRelocate components3Check drive pulleyaViolent engagement of drive pulleyCheck drive pulley engagement speed, drive pulley bushings and components