kpw 50 Workshop-manual : Page 102

          10. CRANKCASE/CRANKSHAFT/KICK
    STARTER/TRANSMISSION                                                                K-PIPE 50


 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)
 Transmission Claw thickness                                     4.935.0                4.43
 fork           Shaft hole I.D.                                34.0234.05              34.05
 Transmission fork shaft O.D.                                  33.9033.96              33.96
 Transmission Left                                               1313.02                 13
 drum O.D.      Right                                          16.1016.12              16.04
                                Main shaft 2nd gear            17.017.018             17.058
                                Main shaft 3rd gear            17.017.018             17.058
                                Main shaft 4th gear          17.01617.034             17.074
                Gear I.D.       Countershaft 1st gear        23.02023.041             23.081
                                Countershaft 2nd gear          20.020.021             22.061
                                Countershaft 3rd gear        23.02023.041             23.081
                                Countershaft 4th gear          20.020.021             22.061
 Transmission
 gear                           Left crankcase side         11.97811.9899             11.938
                Main Shaft
                O.D.            Starter gear                   25.3025.50              25.20
                                2nd /3rd/4th gear            16.96616.984             16.926
                                Right crankcase              11.97811.989             11.938
                                Left crankcase               16.97816.989             16.938
                Countershaft
                O.D.            1st gear                     16.97816.989             16.938
                                2nd gear                        18.8019.0             18.760
                                3rd/4th gear                  19.95919.98             19.919
                Connecting rod big end side clearance            0.050.3                 0.8
 Crankshaft     Connecting rod big end radial clearance           00.05                 0.05
                Runout                                              0.03                 0.1




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