2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 256Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 256

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REAR AXLEFINAL DRIVE GEAR AND DRIVE SHAFT

Ring gear

NOTE: Use LOCTITE on the ring gear stopper
4.Measure: Ring gear stopper clearance Out of specification Repeat adjust