1999 Ski-Doo Factory Shop Manual Volume One, Page 70Get this manual
Section 03 TROUBLESHOOTING Subsection 04 (TRANSMISSION AND BRAKE SYSTEMS)
SYMPTOM CONDITION TestInspection
BELT GLAZED EXCESSIVELY OR HAVING BAKED APPEARANCENORMAL USE1Check if drive pulley bushings are wornaInsufficient pressure on belt sidesReplace bushing2Check condition of drive pulley fixed half shaftaRusted drive or driven pulley shaftsClean shaft with fine steel woof3Check if pulley halves are cleanaOil on pulley surfacesClean pulley halves4Check pulley calibrationaImproper pulley calibrationCalibrate according to specificationBELT WORN EXCESSIVELY IN TOP WIDTHNORMAL USE1Check drive pulleyaExcessive slippage due to irregular outward actuation movement of drive pulleyCarry out drive pulley inspection2Check drive belt identification numberaImproper belt angle (wrong type of belt)Replace belt with an appropriate drive belt3Check drive belt widthaConsiderable useReplace belt if mm (18 in) less than recommended width (see TECHNICAL DATA 10)