2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 72Get this manual

2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 72

ENGINE to specificationsReplace spring if either measurement is out of specification indicatorA 5Remove valve sealsCAUTION:
or damaged Measure valve stem in several places VALVE INSPECTION 1Remove all carbon from valve with soft wire wheel Valve
Stem Diameter: Intake: .2343-.2348 (5.950-5.965 mm) Exhaust: .2341-.2346 (5.945-5.960 mm) 5Measure diameter of valve stem
with micrometer in three places and in two different directions (six measurements total)Compare to specifications 2Check
valve face for runout, pitting, and burnt spotsTo check for bent valve stems, mount valve in drill or use "V" blocks and