2009 Polaris Outlaw 450/525 Service Manual, Page 238Get this manual
6-13 Mounting the timing chain tensioner Screw on the premounted timing chain tensioner with new gasket and tighten to 10
ENGINE ONE REVOLUTION FURTHER AND LOCK AGAIN NOTE: Make sure you have set the rocker arm axial clearance before you attempt
to set the valve clearance The valve clearance is measured between the valve shaft and the adjusting screw when the engine
is cold Place the correct sized feeler gauge between the valve shaft and adjusting screw on both valves when setting the
clearanceThis will prevent the rocker arm rail from rocking side to sideValve Clearance: .005" (0.127 mm) After adjusting,
check the valve clearance again and tighten the counternuts to 11 Nm Screw on both valve covers with new gaskets and tighten
to 10 Nm NOTE: mount the screws (M6x20) with new 6x10x1 copper seal ring Screw in the spark plug and tighten to 17 Nm (M12x1.25).