Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 206Get this manual
CLUTCHING Installation
1Install proper number of spacer washers on jackshaft between clutch and jackshaft bearingInspect Jackshaft Bearing Excessive vibration or abnormal drive belt wear can be caused by worn bearing or jackshaft on the driven clutch sideTo inspect bearing fit, watch the bearing area closely as you try to force the jackshaft up and downIf movement is detected, disassemble to determine which parts are wornReplace the jackshaft if the new bearing is loose on the shaftThe bearing should be greased at 1000 mile (1600 km) intervals and before storageNOTE: Spacer washers between driven clutch and jackshaft bearing set the offsetRefer to adjustment procedure on page 4.40 to adjust offset between the drive and driven clutch2Lightly grease jackshaft keyway or splineWith square key in place slide clutch onto jackshaft