2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 71Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 71

2Remove the valve seal and the lower remaining spring seatDiscard the valve seal Measuring Valve Stem Outside Diameter 1Using
the valve springs; then invert the cylinder head and remove the valvesMeasuring Valve Stem Runout Measuring Valve Face Radial
Runout 1Support each valve stem end with the Blocks (pin 0644-022); then check the valve stem runout using dial indicator
1Mount dial indicator on the surface plate; then place the valve stem on set of blocks2Position the dial indicator contact
point on the outside edge of the valve face; then zero the indicator ATV-1082 2Maximum runout is 0.05 mm (0.002 in3Rotate