kpw 125 Manuale-dofficina : Pagina 22

          1. GENERAL INFORMATION                                                              K-PIPE 125


 NO SPARK AT SPARK PLUG

 Inspection/Adjustment                    Symptom                  Probable Cause

 Replace with a new
 spark plug and inspect
 again


                          Weak or no spark           Good spark   Faulty old spark plug

 Check spark plug cap
 and ignition coil wire
 for looseness

                              Not loose                Loose      Loose spark plug cap


 Check CDI unit coupler
 for looseness


                               Normal                Abnormal     Poorly connected coupler

 Measure resistance
 between CDI unit
 coupler wire terminals


                               Normal                Abnormal


 Check related parts


                                                                  Faulty ignition switch
                               Normal                Abnormal     Faulty exciter coil
                                                                  Faulty pulser coil
                                                                  Faulty ignition coil
                                                                  Broken wire harness
                                                                  Poorly connected coupler

 Check CDI unit with a
 CDI unit tester


                               Normal                Abnormal     Faulty CDI unit


 Check ignition coil
 with a CDI unit tester
                                          Abnormal                Faulty ignition coil



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