2001 Yamaha YFM660 Raptor Factory Service Manual, Page 205Get this manual

2001 Yamaha YFM660 Raptor Factory Service Manual, Page 205

VALVES AND VALVE SPRINGS

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

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