2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 273Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 273

Inspecting Camshaft Bearing Journal 1Inspect the bearing journal for sconng, seIzure marks, or pitting2If excessive scoring,
on the cylinder head and secure with the valve cover cap screwsTighten securelyCC283D 2Rotate the camshaft and note runout;
maximum tolerance is 0.10 mm (0.004 inMeasuring Camshaft Lobe Height NOTE: Do not rotate the camshaft when measuring clearance
4Remove the cap screws securing the valve cover to the cylinder; then remove the valve cover and camshaft 1Using calipers,
measure each cam lobe height Lobe Height ATV1013A 2The intake lobe height must be minimum 33.150 mm (1.305 in; exhaust lobe