2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 40Get this manual
MAINTENANCE adjustment of each valveINTAKE VALVE CLEARANCE .006 (.15 mm) 3Hold adjuster screw and tighten adjuster lock nut securely4Re-check the valve clearance5Repeat adjustment procedure if necessary until clearance is correct with locknut secured6Repeat this step for the other intake valveEXHAUST VALVE CLEARANCE .006 (.15 mm) Valve Adjuster Tool: (PA-44689) 3When clearance is correct, hold adjuster screw and tighten locknut securely4Re-check the valve clearance5Repeat adjustment procedure if necessary until clearance is correct with locknut secured
EXHAUST VALVE CLEARANCE ADJUSTMENT
NOTE: The exhaust valves share common rocker arm, and must be adjusted using two feeler gaugesNote: Do not stack more than one feeler gauge to make .006 1Insert .006 feeler gauges between end of exhaust valve stem and adjuster screws