1999 Ski-Doo Factory Shop Manual Volume One, Page 71Get this manual
Section 03 TROUBLESHOOTING Subsection 04 (TRANSMISSION AND BRAKE SYSTEMS)
SYMPTOM CONDITION TestInspection
BELT WORN NARROW IN ONE SECTIONNORMAL USE1Check if parking brake is releasedaParking brake is engagedRelease parking brake2Check track tensionalignmentaFrozen or too tight trackLiberate track from ice or check track tension and alignment3Check drive pulleyaDrive pulley not functioning properlyRepair or replace drive pulley4Check idle speedaEngine idle speed too highAdjust according to specification5Check drive belt lengthaIncorrect belt lengthReplace belt with an appropriate drive belt (refer to TECHNICAL DATA 10)6Check distance between pulleysaIncorrect pulley distanceReadjust according to specification7Check belt deflectionaDeflection is too smallAdjust according to specificationBELT SIDES WORN CONCAVENORMAL USE1Check pulley half surfacesaRough or scratched pulley half surfacesRepair or replace2Check drive belt identification numberaUnspecified type of beltReplace belt with an appropriate drive belt (refer to TECHNICAL DATA 10)