2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 258Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 258

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REAR AXLEFINAL DRIVE GEAR AND DRIVE SHAFT
Finger tighten the bolt until it holds the ring gearOtherwise, the ring gear will be damaged
4.Attach: Gear lash measurement tool Dial gauge Gear