2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 332Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 332

2Rotate the camshaft and note runout; maximum tolerance must not exceed specificationsMeasuring Camshaft Lobe Height 2Place
cap screws 1-4 with washers to 0.9 kg-m (6.5 ft-lb), cap screws 5-6 to 1.0 kg-m (7 ft-lb ), and cap screws (A) to 1.0 kg-m
(7 ft-lb)NOTE: Do not rotate the camshaft when measuring clearance 1Inspect the bearing journal for scoring, seizure marks,
or pitting2If excessive scoring, seizure marks, or pitting is found, the cylinder head assembly must be replacedMeasuring
Camshaft to Cylinder Head Clearance 1Remove the adjuster screws and jam nuts 4Remove the cap screws securing the rocker case