2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 282Get this manual
3Maximum distortion must not exceed specifications Measuring Valve Stem Runout 1Support each valve stem end with the Blocks; then check the valve stem runout using dial indicator
Removing Valves
NOTE: Keep all valves and valve components as setNote the original location of each valve set for use during installationReturn each valve set to its original location during installationFI330
2Maximum runout must not exceed specificationsMeasuring Valve Stem Outside Diameter 1Using micrometer, measure the valve stem outside diameter2Acceptable diameter range (intake valve) must be within specifications3Acceptable diameter range (exhaust valve) must be within specificationsMeasuring Valve FaceSeat Width 1Using calipers, measure the width of the valve face