2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 50Get this manual

2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 50

Measuring Valve Guide (Inside Diameter) Measuring Cylinder Head Distortion 1Insert snap gauge 12 way down into each valve
spark plug hole for any damaged threadsRepair damaged threads using "heli-coil" insert3Place the cylinder head on the surface
plate covered with #400 grit wet-or-dry sandpaperUsing light pressure, move the cylinder head in figure eight motionInspect
the sealing surface for any indication of high spotsA high spot can be noted by bright metallic finishCorrect any high spots
before assembly by continuing to move the cylinder head in figure eight motion until uniform bright metallic finish is attainedCC141D
Measuring Camshaft Runout NOTE: If the camshaft is out of tolerance, it must be replaced 1Place the camshaft on set of blocks;
then position the dial indicator contact point against the shaft and zero the indicator ! CAUTION Water or parts-cleaning