2008 Arctic Cat ATVs factory service and repair manual, Page 278Get this manual
Remove the exhaust camshaft; then repeat step for the intake camshaftAccount for two alignment pins Fl056
6Remove the intake camshaft; then wipe the four valve tappets clean and using suitable marker, number the tappets and mark the corresponding position on the cylinder headmNOTE: This will greatly simplify valve clearance adjustment during assembling
WNOTE: The adjustment shims are of different thicknessWhenever the shims are removed, they must remain with the corresponding valve tappets or complete valve adjustment will be required when assembling