7. CYLINDER/PISTON STRYKER 125/150 Install the piston, piston pin and a new piston Piston Pin "IN" Mark pin clip. · Position the piston top "IN" mark on the intake valve side. · Place a clean shop towel in the crankcase to prevent the piston pin clip from falling into the crankcase. Piston Pin Clip Piston Gasket CYLINDER INSTALLATION Install the dowel pins and a new cylinder gasket on the crankcase. Dowel Pin Coat the cylinder bore, piston and piston rings with clean engine oil. Carefully lower the cylinder over the piston by compressing the piston rings. · Be careful not to damage or break the piston rings. · Stagger the ring end gaps at 120° to the piston pin. Cylinder 7-8