11-111. CYLINDER / PISTONSERVICE INFORMATIONGENERAL SAFETYBe careful not to damage the mating surfaces by using a screwdriver when disassembling the cylinder. Do not strike thecylinder too hard during disassembly, even with a rubber or plastic mallet, to prevent the possibility of damage to thecylinder fins.Take care not to damage the cylinder wall and piston.SPECIFICATIONSTROUBLESHOOTINGCompression too low OverheatingWorn piston Excessive carbon build-up on top of pistonWorn, damaged piston ringWorn cylinderAbnormal noiseExcessive smoke Worn cylinder and pistonWorn cylinder, piston or piston rings Worn connecting rod small end bearing or piston pinImproper installation of piston ring Damaged piston ringScored or scratched piston or cylinder Excessive carbon build-up on top of pistonSERVICE INFORMATION 11-1TROUBLESHOOTING 11-1CYLINDER REMOVAL 11-2PISTON / PISTON RING 11-3CYLINDER INSTALLATION 11-6ITEM STANDARD VALUE SERVICE LIMITUnit : mm73.100.100.050.1072.6017.0416.960.020.090.090.501.100.3017.060.0473.005~73.015---72.985~72.96517.002~17.00816.994~17.0000.002~0.0140.015~0.0450.015~0.0450.35~0.450.20~0.700.020~0.05017.010~17.0280.010~0.034INNER DIAMETERCYLINDERICALROUNDLESSHEAD CONTACT WARPAGEPISTON SKIRT OUTER DIAMETERPISTON PIN HOLE INNER DIAMETERPISTON PIN OUTER DIAMETERPISTON-TO-PISTON PIN CLEARANCECYLINDERPISTON RING-TO-GROOVE CLEARANCEPISTON RINGJOINT GAPTOPSECONDTOP / SECONDOIL RING (SIDE RAIL)PISTON,PISTON PIN,PISTON RINGCYLINDER-TO-PISTON CLEARANCECONNECTING ROD SMALL END INNER DIAMETERGAP BETWEEN CONNECTING ROD SMALL END AND PISTON PIN