1997 Yamaha YFM600FWAK ATV Service Manual, Page 129Get this manual

1997 Yamaha YFM600FWAK ATV Service Manual, Page 129

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VALVES AND VALVE SPRINGS
Pour clean solvent CD into the intake and exhaust ports Check that the valve seals properlyThere should be no leakage at the valve seat

2.Remove: Valve cott