2011 Arctic Cat 400 TRV ATV Service Manual, Page 21Get 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 engine transmissionNOTE: 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 1
Specifications
VALVES AND GUIDES
Valve Face Diameter ValveTappet Clearance (cold engine) Valve GuideStem Clearance (max) Valve GuideValve Stem Deflection (wobble method) Valve Guide Inside Diameter Valve Stem Outside Diameter Valve Stem Runout Valve Margin (min) Valve FaceSeat Width (min) Valve Seat Angle Valve Face Radial Runout Valve Spring Free Length Valve Spring Tension 32.5 mm Cam Lobe Height (min) (intake) 30.6 mm (exhaust) 27.0 mm