2007 Arctic Cat Prowler/Prowler XT ATVs Service Manual, Page 47Get this manual
Measuring Valve Stem Outside Diameter
Measuring Valve GuideValve Stem Deflection (Wobble Method)
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
1Mount dial indicator and base on the surface plate; then place the cylinder head on the surface plate2Install the valve into the cylinder head; then position the dial indicator contact point against the outside edge of the valve faceZero the indicator
1Using micrometer, measure the width of the valve face
3Push the valve from side to side; then from top to bottom4Maximum "wobble" deflection must not exceed specificationsMeasuring Valve Guide (Inside Diameter)
ATV-1004