kpw 125 Manuale-dofficina : Pagina 164

          15. IGNITION SYSTEM                                                                  K-PIPE 125

 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                       CR7HSA
 Spark plug                                   Hot type                          CR6HSA
                                              Cold type                         CR8HSA
 Spark plug gap                                                       0.60.7mm
 Ignition timing                 "F" mark:152°/1,700rpm                   
                                  Primary coil                         0.20.3
 Ignition coil resistance (20) Secondary       with plug cap          7.28.2K
                                  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                                      3001000rpm 400V max.


 TESTING INSTRUMENT
 Electric Tester
 Timing light
 Tachometer




                                                                                             15-2