2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 43Get this manual
MAINTENANCE Oil Pump Priming Procedure
NOTE: This priming procedure must be performed whenever the oil hose connection between the oil tank and pump inlet has been disconnected1Clamp or pinch off vent line (A) approximately 2" from oil tank to avoid the end of oil tank vent fitting, and the vent line's pressure relief slit
Valve Clearance
Inspect and adjust valve clearance while the engine is cold and the piston positioned at Top Dead Center (TDC) on compression stroke123Remove the seatRemove body panels and fuel tank as necessary to gain access to valve coverRemove the spark plug high tension lead and remove the spark plugCAUTION: Place clean shop towel into the spark plug cavity to prevent dirt from enteringRemove rocker cover bolts, cover and gasketNOTE: It may be necessary to tap cover lightly with soft-faced hammer to loosen it from the cylinder head5Slit (A) Remove timing inspection plug from recoil housing