2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 331Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 331

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ELECTRIC STARTING SYSTEM
6.Measure: Brush spring force Fatigueout of specification Replace as setBrush spring force: 7.6510.01 Nm (7801,020 g, 27.536.0 oz)

7.Inspect: Oil seal Bushi