2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 153Get this manual
CAMSHAFT, ROCKER ARMS AND VALVES
3.Check: Valve face Pittingwear Grind the faceG Valve stem end Mushroom shape or diameter larger than the body of the stem Replace
CAMSHAFT, ROCKER ARMS AND VALVES
3.Check: Valve face Pittingwear Grind the faceG Valve stem end Mushroom shape or diameter larger than the body of the stem Replace