6. CYLINDER HEAD/VALVES STRYKER 125/150 CAMSHAFT HOLDER DISASSEMBLY Rocker Arm Shafts Remove the stopper bolt and the stopper. Take out the valve rocker arm shafts using a 5mm bolt. Stopper Rocker Arms CAMSHAFT HOLDER INSPECTION Inspect the camshaft holder, valve rocker Camshaft Holder arms and rocker arm shafts for wear or damage. If the valve rocker arm contact surface is worn, check each cam lobe for wear or damage. Rocker Arm Shafts Measure the I.D. of each valve rocker arm. Service Limits: IN: 12.10mm replace if over EX:12.10mm replace if over Measure each rocker arm shaft O.D. Service Limits: IN: 11.91mm replace if over EX:11.91mm replace if over 6-7