2003-2006 Yamaha Snowmobile RX1 Service Manual, Page 214Get this manual

2003-2006 Yamaha Snowmobile RX1 Service Manual, Page 214

CRANKCASE 17Inspect: Bearings Clean and lubricate the bearings, then rotate the inner race with your fingerRough movementReplace18Inspect:
Oil seals DamagewearReplace 19Inspect: Primary drive gear Oil pump driven gear CracksdamagewearReplace the defective part(-s)