2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 269Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 269

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FRONT AND REAR WHEELS 2.Tighten: Nuts (wheel) 1
WARNING
Tapered wheel nuts are used for both the front and rear wheelsInstall each nut with its tapered side towards the wheel