1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 161Get this manual

1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 161

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VALVESANDVALVESPRINGS 2.Replace: Valve guide

After replacing the valve guide reface the valve seat302-013

3.1nspect: Valve face Pittingwear -7 Grind the face Valve stem end M