6. CYLINDER HEAD/VALVES STRYKER 125/150 CAMSHAFT HOLDER ASSEMBLY Camshaft Holder Install the exhaust valve rocker arm and one-way stopper 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. Stopper Rocker Arms CAMSHAFT INSTALLATION Cam Chain Camshaft Gear Turn the flywheel so that the "T" mark on the flywheel aligns with the index mark on the crankcase. Keep the round hole on the camshaft gear facing up and align the punch marks on the camshaft gear with the cylinder head surface (Position the intake and exhaust cam lobes down.). Then, install the camshaft onto the cylinder head. Install the cam chain over the camshaft gear. Round Hole Punch Marks Install the dowel pins. Dowel Pins 6-16