2004 Skidoo Tundra Skandic Series Service Manual, Page 86Get this manual
Section 03 TROUBLESHOOTING Subsection 04 (TRANSMISSION AND BRAKE SYSTEMS)
SYMPTOM CONDITION TestInspection
BELT TOO NARROW ON ONE SECTIONNORMAL USE5Check idle speedaEngine idle speed is too highAdjust according to specifications6Check drive belt lengthaIncorrect belt lengthReplace with an appropriate drive belt (refer to TECHNICAL DATA)7Check distance between pulleysaIncorrect pulley distanceReadjust according to specifications8Check belt heightaBelt height is incorrectAdjust according to specifications
SYMPTOM CONDITION TestInspection
BELT SIDES WORN CONCAVENORMAL USE1Check pulley half surfacesaRough or scratched pulley half surfacesRepair or replace2Check drive belt identification numberaWrong type of beltReplace belt with an appropriate drive belt (refer to TECHNICAL DATA)