stryker 125 Manuel atelier : Page 37

          2. GENERAL INFORMATION                                                   STRYKER 125/150


 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 loose connection

                                Not loose               Loose      Loose spark plug cap

 Check CDI unit coupler
 for loose connection

                                 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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