7. CYLINDER/PISTON K-PIPE 125 CYLINDER REMOVAL Guide Roller Remove the cylinder head. Remove the cam chain guide roller. Remove the cylinder by removing the cylinder bolt. Remove all gasket material from the cylinder surface. Remove the gasket and dowel pins. Guide Roller Bolt Dowel Pins Gasket CYLINDER INSPECTION Inspect the cylinder bore for wear or damage. Measure the cylinder I.D. at three levels of top, middle and bottom at 90° to the piston pin (in both X and Y directions). Service Limit: 52.4mm repair or replace if over Measure the cylinder-to-piston clearance. Service Limit: 0.35mm repair or replace if over The true roundness is the difference between the values measured in X and Y directions. The cylindricity (difference between the values measured at the three levels) is subject to the maximum value calculated. Top Service Limits: True Roundness: 0.05mm repair or replace if over Cylindricity: 0.05mm repair or replace if over Middle Bottom 7-4