2006 Ski Doo REV Service Shop Manual, Page 45Get this manual
Section 02 TROUBLESHOOTING Subsection 03 (DRIVE AND BRAKE SYSTEMS)
DRIVE AND BRAKE SYSTEMS
The following chart is provided to help diagnose the probable source of troublesIt should be used as guidelineSome causes or corrections may not apply to specific model
DRIVE SYSTEM
SYMPTOM THE SNOWMOBILE ACCELERATES SLOWLY, ESPECIALLY FROM STANDING START
CONDITION
TESTINSPECTION
NORMAL USE 1Check drive belt conditionaBelt is too narrow (drive belt engagement is higher in drive pulley)Replace belt if width is less than specified in DRIVE BELT2Check drive belt deflectionaDeflection is too high (drive belt engagement is higher in drive pulley)Adjust drive belt height according to specifications (refer to PULLEY ALIGNMENT and DRIVE BELT)3Check if driven pulley sliding half slides freelyaJammed sliding halfReplace4Check spring tension of driven pulley sliding halfaSliding half rotation is accelerated when spring tension is too weakAdjust according to specifications (refer to TECHNICAL DATA)5Refer to VIBRATIONS ORIGINATING FROM DRIVE PULLEY and VIBRATIONS ORIGINATING FROM DRIVEN PULLEY and check items listed6Check drive pulley spring tensionaSpring tension is too weakReplace