7. CYLINDER/PISTON STRYKER 125/150 INSPECTION Inspect the piston, piston pin and piston rings. Remove the piston rings. Take care not to damage or break the piston rings during removal. Remove carbon deposits from the piston ring grooves. Install the piston rings onto the piston and measure the piston ring-to-groove clearance. Service Limits: Top: 0.9mm replace if over 2nd: 1.2mm replace if over Remove the piston rings and insert each piston ring into the cylinder bottom. Use the piston head to push each piston ring into the cylinder. Measure the piston ring end gap. Service Limit: 0.50mm 7-4