2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 74Get this manual
ADJUSTING THE VALVE CLEARANCE ENGINE
ADJUSTING THE VALVE CLEARANCE NOTE: The valve clearance must be adjusted when the engine is cool to the touchG Adjust the valve clearance when the piston is at the Top Dead Center (T.D.C on the compression stroke1.Remove: Seat Front carrier Front fender Fuel tank Refer to "SEAT, CARRIERS, FENDERS AND FUEL TANK"