1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 43Get this manual
NO IIA SJP -VALVE CLEARANCE ADJUSTMENT WB2AAOO3
VALVE CLEARANCE ADJUSTMENT NOTE: The valve clearance should be adjusted when the engine is cool to the touch The piston must be at Top Dead Center (TDC) on compression stroke to check or adjust the valve clearance1Remove: Seat