2007 Arctic Cat DVX/Utility 250 ATV Service Manual, Page 30Get this manual
EngineTransmission This section has been organized into sub-sections which show progression for the complete servicing of the Arctic Cat ATV enginetransmissionTo service the center crankcase halves, the enginetransmission must be removed from the frameTo service top-side, left-side, and right-side components, the enginetransmission does not have to be removed from the frameNOTE: Arctic Cat recommends the use of new gaskets, lock nuts, and seals and lubricating all internal components when servicing the enginetransmissionNOTE: Some photographs and illustrations used in this section are used for clarity purposes only and are not designed to depict actual conditionsNOTE: Critical torque specifications are located in Section 10
Specifications
VALVES AND GUIDES
Valve Face Diameter ValveTappet Clearance (cold engine) (intake) 33 mm (1.3 in (exhaust) 28 mm (1.1 in (intake) 0.03-0.08 mm (0.001-0.003 in (exhaust) 0.08-0.13 mm (0.003-0.005 in (intake) 0.010-0.037 mm (0.0004-0.0015 in (exhaust) 0.030-0.057 mm (0.0012-0.0024 in (max) 0.35 mm (0.014 in