6. CYLINDER HEAD/VALVES K-PIPE 125 Tap the valve stems gently with a plastic hammer for 23 times to firmly seat the cotters. Be careful not to damage the valves. Camshaft Rocker Arms Coat the camshaft bearings and automatic de-compressor cam with clean engine oil. Install the camshaft into the cylinder head with the cam lobes facing the piston. Install the rocker arm as show. Coat the rocker arm shafts with clean engine oil. Rocker arm shaft Install the rocker arm shafts by screwing an 8mm bolt into the thread end as show. Install a new gasket on the right side cover. Install the right side cover. Gasket 6-7