2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 139Get this manual

2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 139

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CAMSHAFT, ROCKER ARMS AND VALVES

VALVE AND VALVE SPRING REMOVAL 1.Check: Valve sealing Leakage at the valve seat Inspect the valve face, valve seat and valve seat widthRefer to "VALVE AND

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