2000 Arctic Cat ATV Factory Service Manual, Page 94Get this manual
Fig3-254
30Adjust valvetappet clearance using the following procedureNOTE: Use Valve Clearance Adjuster (pn 0444-078) for this procedure
ATurn the engine over until the piston reaches top dead center on the compression strokeBPlace the valve adjuster onto the jam nut securing the tappet adjuster screw; then rotate the valve adjuster dial clockwise until the end is seated in the tappet adjuster screwCC528D
26Apply thin coat of Three Bond Sealant (pn 0636-070) to the mating surfaces of the cylinder head and valve coverFig3-255
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 feltDAlign 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 attainedNOTE: Refer to the appropriate Specifications for the proper valvetappet clearanceN OTth valve adjust di counterclockwise will open the valvetappet clearance by 0.05 mm (0.002 in per mark