7. CYLINDER/PISTON GRAND DINK 125/150 Inspect the top of the cylinder for warpage. Service Limit: 0.05mm repair or replace if over Measure the connecting rod small end I.D. Service Limit: 15.06mm replace if over PISTON RING INSTALLATION Install the piston rings onto the piston. Apply engine oil to each piston ring. · Be careful not to damage the piston and Top piston rings during assembly. · All rings should be installed with the Second markings facing up. · After installing the rings, they should rotate freely without sticking. Side Rail · Stagger the ring end gaps as the figure shown. Oil Ring Side Rail Top Second 7-6