1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 333Get this manual
ENGINES Magnum Engine Assembly Rocker ShaftRocker Arm Assembly Installation 123456Assemble rocker arms, rocker shaft, and shaft supportsInstall and tighten rocker arm shaft locating boltApply molybdenum disulfide grease to the cam lobes and cam follower surfacesRotate the engine until the cam lobes are pointing downwardBe sure the dowel pins are in place and install the rocker shaft assemblyApply light film of engine oil to the threads of the bolts and tighten evenly
7Adjust valves according to the valve adjustment procedure found on page 7.208Apply clean engine oil liberally to the valve springs, cam chain, rocker arms, and camshaft9Place new rocker cover gasket on the cylinder head and install the cover and bolts