2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 313Get this manual
Servicing ValvesValve GuidesValve Seats If valves, valve guides, or valve seats require servicing or replacement, Arctic
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 2Insert each valve into its original valve location3Install the valve springs with
the painted end of the spring facing away from the cylinder headNOTE: If the paint is not visible, install the ends of the
springs with the closest wound coils toward the head 3Push the valve from side to side; then from top to bottom4Maximum "wobble"
deflection must not exceed specificationsMeasuring Valve Guide (Inside Diameter) 1Insert snap gauge 12 way down into each
valve guide bore; then remove the gauge and measure it with micrometer2Acceptable inside diameter range must be within specifications3If