1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 154Get this manual
CAMSHAFr AND CYLINDER HEAD
CAMSHAFT INSPECTION 1.lnspect: Cam lobes Pittingscratchesblue discoloration Replace2.Measure: Cam lobes length and Out of specification Replace
Camshaft lobe limit: Intake 36.37 mm (1.433 29.96 mm (1.180 Exhaust: 36.52 mm (1.438 30.01 mm (1.181