10. CRANKCASE/CRANKSHAFT/TRANS- MISSION SYSTEM/STARTER SPINDLE ZING II 125 SERVICE INFORMATION GENERAL INSTRUCTIONS · During crankcase separation, do not separate the crankcase halves with an iron hammer to avoid crankcase deformation or damage. · After separation, be careful not to damage the right and left crankcase mating surfaces to avoid oil leakage. · Replace the gasket with a new one during reassembly of the crankcase halves. · After transmission system disassembly, make sure that the gear shifting operation is normal before reassembly of the remaining parts. · Apply engine oil to the transmission system and crankshaft before reassembly. SPECIFICATIONS Item Standard (mm) Service Limit (mm) Left 16.96416.984 16.924 Balance shaft Right 16.96416.984 16.924 Transmission Claw thickness 4.935.0 4.43 fork Shaft hole I.D. 1212.018 12.058 Transmission fork shaft O.D. 11.97611.994 11.936 Transmission Left 12.96612.984 12.926 drum O.D. Right 20.95920.98 20.919 Main shaft starter gear 20.05520.095 20.135 Main shaft 4th gear 2020.021 20.061 Main shaft 5th gear 20.0220.041 20.061 Gear I.D. Countershaft starter idle 19.5219.541 19.581 Countershaft 1st gear 20.0220.041 20.081 Countershaft 2nd gear 22.02022.041 22.081 Countershaft 3rd gear 2020.021 20.061 Transmission gear Left crankcase side 14.97814.989 14.938 Main Shaft O.D. Starter gear 19.95919.98 19.919 4th/5th gear 19.95919.98 19.919 Right crankcase 14.96614.984 14.926 Left crankcase 21.95921.98 21.919 Countershaft O.D. 1st gear 16.46616.484 16.426 2nd gear 21.95921.98 21.919 3rd gear 19.95919.98 19.919 Connecting rod big end side clearance 0.050.3 0.8 Crankshaft Connecting rod big end radial 00.008 0.05 Runout 0.03 0.1 10-2