kpw 50 Workshop-manual : Page 165

          15. IGNITION SYSTEM                                                                    K-PIPE 50


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
  Inspect the ignition system according to the sequence specified in the Troubleshooting 15-2.
  The ignition system has an electrical auto aligner in the CDI unit, so the ignition timing is not
  adjustable.
  Do not drop or impact the CDI unit with strong force to avoid damage. Be careful when removing
  it.
  Loose connector and poor wire connection are the main causes of faulty ignition system. Check
  each connector before operation.
  Check the spark plug heat range. Use of spark plug with improper heat range is the main cause of
  poor engine performance or burned engine.
  Perform inspections according to the servicing procedures specified in each section.

 SPECIFICATIONS
                               Item                                       Standard
                                           Standard type              CHAMPION-P-RZ9HC
 Spark plug

 Spark plug gap                                                          0.60.8mm
 Ignition timing                  "F" mark:302°/3900rpm                      
                                   Primary coil                           0.10.3
 Ignition coil resistance (20) Secondary with plug cap                    1015K
                                   coil         without plug cap         4.25.2K
 Pulser coil resistance (20)                                              80160
 Exciter coil resistance (20)                                            550650
 Ignition coil primary side max. voltage                                  140V min.
 Pulser coil max. voltage                                             1.5V/300rpm min.
 Exciter coil max. voltage                                         35010000rpm 400V max.


 TESTING INSTRUMENT
 Electric Tester
 Timing light
 Tachometer




                                                                                          15-2