2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 142Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 142

Removing Valves NOTE: Keep all valves and valve components as setNote the original location of each valve set for use during
runout is 0.05 mm (0.002 inMeasuring Valve Stem Outside Diameter 2Remove the valve seal and the lower remaining spring seatDiscard
the valve seal 1Using micrometer, measure the valve stem outside diameter2Acceptable diameter range (intake valve) is 4.9754.990
mm (0.19590.1965 in3Acceptable diameter range (exhaust valve) is 4.9554.970 mm (0.19510.1957 inMeasuring Valve FaceSeat Width
1Using micrometer, measure the width of the valve face ATV-1004 2Acceptable width (0.035-0.043 in NOTE: The valve seals must