1997 Yamaha YFM600FWAK ATV Service Manual, Page 125Get this manual
CAMSHAFT AND CYLINDER HEAD
Place 400600 grit wet sandpaper on the surface plate, and resurface the head using figure-eight sanding pattern
NOTE: 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)