2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 13Get this manual
CHECKINGDRAINING DRAIN TUBE
Periodically check the drain tube for gasoline or oil accumulationIf noticed, remove the drain tube cap from beneath the housing and drain the gasoline or oil into suitable container; then install and secure the tube cap
6While holding the valve adjuster handle in place, rotate the valve adjuster dial counterclockwise until proper valvetappet clearance is attainedNOTE: Refer to the appropriate specifications in Section for the proper valvetappet clearanceNOTE: Rotating the valve adjuster dial counterclockwise will open the valvetappet clearance by 0.05 mm (0.002 in per mark
7While holding the adjuster dial at the proper clearance setting, tighten the jam nut securely with the valve adjuster handle8Place the cylinder head cover with new O-ring into position; then tighten the cover securely
ValveTappet Clearance