10. CYLINDER/PISTON MYROAD 700i SERVICE INFORMATION GENERAL INSTRUCTIONS · The cylinder and piston can be serviced with the engine installed in the frame. · When installing the cylinder, use a new cylinder gasket and make sure that the dowel pins are correctly installed. · After disassembly, clean the removed parts and dry them with compressed air before inspection. SPECIFICATIONS (XCITING 250/250 AFI) Unit: mm Item Standard Service Limit I.D. 76.9+0.01576.9+0.005 76.965 Cylinder Cylindricity 0.01 0.05 True roundness 0.01 0.05 Ring-to-groove top 0.030.07 0.1 clearance Second 0.030.07 0.1 top 0.250.35 0.65 Piston, Ring end gap Second 0.30.5 0.65 piston ring Oil side rail 0.20.7 0.85 Piston O.D. 76.895+076.895-0.02 76.825 Piston O.D. measuring position 10 mm from bottom of skirt . Piston-to-cylinder clearance 0.010.04 0.14 Piston pin hole I.D. 18.00218.008 18.018 Piston pin O.D 1817.994 17.984 Piston-to-piston pin clearance 0.0020.014 0.044 Connecting rod small end I.D. bore 18.03418.016 18.044 10-2