mxer mxu 150 Workshop-manual : Page 228

          16. STARTING SYSTEM                                                       ATV 1540/125

                                                Commutator
 ASSEMBLY
 Apply grease to the dust seal in the front
 cover.
 Install the brushes onto the brush holders.
 Apply a thin coat of grease to the two ends
 of the armature shaft.
 Insert the commutator into the front cover.
 · Be careful not to damage the brush and
     armature shaft mating surfaces.
   · When installing the commutator, the
     armature shaft should not damage the                                  Front Cover
     dust seal lip.
                                                   Tab           Groove       O-ring
 Install a new O-ring to the front cover.
 Install the starter motor case, aligning the
 tab on the motor case with the groove on the
 front cover.
 Tighten the starter motor case screws.
 When assembling the front cover and
   motor case, slightly press down the
   armature shaft to assemble them.

                                                             Motor Case
                                                                            Starter Relay

 STARTER RELAY
 INSPECTION
 Remove the seat.
 Turn the ignition switch ON and the starter
 relay is normal if you hear a click when the
 starter button is depressed.
 If there is no click sound:
 · Inspect the starter relay voltage
 · Inspect the starter relay ground circuit
 · Check for continuity between the starter
   relay yellow/red and green/red wire
   terminals

 STARTER RELAY VOLTAGE
 INSPECTION
 Connect a 12 V battery across the starter
 relay yellow/red and green/red wire
 terminals.
 Connect an electric tester between the
 starter relay large terminals and check for
 continuity between the two terminals.
 The relay is normal if there is continuity.
 Replace the starter relay with a new one if
 there is no continuity.

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