1997 Ski-Doo Factory Shop Manual Volume One, Page 37Get this manual
Sub-Section 04
Section 02 TROUBLESHOOTING (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 functionning 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 09)6Check distance between pulleysaIncorrect pulley distanceReadjust according to specification7Check belt deflectionaDeflection is too smallAdjust according to specification