mxu 50 Manuel atelier : Page 43

          1. GENERAL INFORMATION                                                                       ATV 50


 STARTER MOTOR
 1. Starter motor won`t turn
 Inspection/Adjustment                      Symptom                       Probable Cause

 Check operation of
 stop switch by                                                          Burned out fuse
 applying brake.                                                         Weak or dead battery
                                                 Stoplight does not      Faulty stop switch
                         Stoplight comes on                              Loose or disconnected
                                                 come on                 connector
 Check battery circuit
 by operating turn                                                       Broken or shorted ignition
 signals.                                                                switch wire
                           Signals operate       Signals dim, remain     Faulty or weak battery
                           properly              on or don`t operate
 Check operation of
 starter relay by
 depressing starter
 button.
                           Relay operates             Relay does not     Poor starter button connection
                           properly                   operate            Faulty starter relay
                                                                         Loose or disconnected
 Connect starter                                                         connector
 motor directly to
 battery.
                         Starter motor turns     Starter does not turn   Faulty starter motor
                                                                         Faulty wire harness
 2. Starter motor turns slowly or idles
 Inspection/Adjustment                      Symptom                       Probable Cause
 Check battery circuit
 by operating turn
 signals.
                          Signals operate        Signals dim, remain
                          properly               on or don`t operate     Weak or dead battery
 Connect starter
 motor directly to
 battery.
                           Starter motor              Starter motor      Loose or disconnected
                           turns slowly               turns normally     connector
                                                                         Faulty starter relay
 Rotate crankshaft.

                            Turns easily               Hard to turn      Seized cylinder
                                                                         Broken or shorted starter
                                                                         motor cable
                                                                         Faulty starter pinion
 3. Starter motor does not stop turning
 Inspection/Adjustment                      Symptom                       Probable Cause
 Turn ignition switch
 OFF.

                           Not stopped                   Stopped         Faulty starter pinion
                                                                         Starter relay shorted or stuck
                                                                         closed
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