7. CYLINDER HEAD/VALVES PEOPLE 125/150 CYLINDER HEAD ASSEMBLY Install the valve spring seats and valve stem seals. Lubricate each valve stem with engine oil and insert the valves into the valve guides. Be sure to install new valve stem seals. Tap the valve stems gently with a plastic hammer for 2 3 times to firmly seat the cotters. Be careful not to damage the valves. Dowel Pins Gasket CYLINDER HEAD INSTALLATION Install the dowel pins and a new cylinder head gasket. Install the cam chain guide. Cam Chain Guide Install the cylinder head. Cylinder Head Camshaft Holder CAMSHAFT HOLDER ASSEMBLY Install the exhaust valve rocker arm to the "EX" mark side of the camshaft holder. Install the intake valve rocker arm and the rocker arm shafts. · Align the cutout on the front end of the intake valve rocker arm shaft with the bolt of the camshaft holder. · Align the cross cutout on the exhaust valve rocker arm shaft with the bolt of the camshaft holder. Valve Rocker Arm 7-10