2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 186Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 186

23Rotate the crankshaft until the first cap screw securing the sprocket to the camshaft can be installed; then install the
steps 23 and 24) to 1.15 kg-m (8.5 ft-lb)Bend the washer tabs to secure the cap screws26Loosen the adjuster screw jam nuts;
then loosen the adjuster screws on the rocker arms in the valve cover27Apply thin coat of Three Bond Sealant (pn 0636-070)
to the mating surface of the valve coverPlace the valve cover into position making sure the two alignment pins are properly
positioned NOTE: At this point, the rocker arms and adjuster screws must not have pressure on them CWhile holding the valve
adjuster dial in place, use the valve adjuster handle and loosen the jam nut; then rotate the tappet adjuster screw clockwise
until friction is felt DAlign the valve adjuster handle with one of the marks on the valve adjuster dialEWhile holding the
valve adjuster handle in place, rotate the valve adjuster dial counterclockwise until proper valvetappet clearance is attained