1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 156Get this manual
CAMSHAFT AND CYLINDER HEAD
Place 400600 grit wet sandpaper on the surface plate, and resurface the head using figure-eight sanding patternNOTE: _
To ensure an even surface rotate the cylinder head several times
CAMSHAFT AND CYLINDER HEAD INSTALLATION
1.lnstall: Cylinder head Bolts (M81-4)
Nuts (M85,6) Bolt (M67)
rrI-r-12-=-2 X