2008 Arctic Cat ATVs factory service and repair manual, Page 18Get this manual
4Using an appropriate thickness gauge, measure and record the clearance of both intake valves; then measure and record the clearance of both exhaust valvesValve clearance must be within specificationsIntake Exhaust
VALVETAPPET CLEARANCE (700 EFI)
0.10-0.20 mm (0.004-0.008 in 0.20-0.30 mm (0.008-0.012 in
wAT THIS POINT
If valve clearance is within specifications, proceed to step 12
5Identify the valves that are not within specifications; then remove the corresponding camshaft (see SectionRemoving Top-Side Components)-
If the camshaft passageway is not plugged, tappet shims could fall into the engine crankcase
When removing camshaft holders, use extreme care not to drop alignment pins into the engine
8Note the three digit number on the surface of the tappet shim; then refer to the appropriate tappet shim selection table at the end of this section for the correct replacement