mxer mxu 150 Workshop-manual : Page 212

          14. BATTERY/CHARGING SYSTEM/
    A.C. GENERATOR                                                                 ATV 150/125


 CHARGING SYSTEM
 SHORT CIRCUIT TEST
 Disconnect the ground wire from the battery
 and connect an ammeter across the battery
 negative (-) terminal and the ground wire.
 Turn the ignition switch OFF and check for
 short circuit.
 Connect the electric tester positive (+)
    terminal to ground wire and the tester
    negative (-) terminal to the battery
    negative (-) terminal.                                          (-) Terminal

 If any abnormality is found, check the
 ignition switch and wire harness for short
 circuit .
 CURRENT TEST
 This inspection must be performed with an
 electric tester when the battery is fully
 charged.
 Warm up the engine for inspection.
 Connect the electric tester across the battery
 terminals. Disconnect the red wire from the
 fuse terminal and connect an ammeter
 between the red wire lead and the fuse
 terminal as shown.
 Attach a tachometer to the engine.
 Start the engine and gradually increase the
 engine speed to measure the limit voltage        Headlight Wire Coupler
 and current.
 Limit Voltage/Current:
 13.515.5 V/0.5 A max. (5000 rpm max.)
 If the limit voltage is not within the
 specified range, check the egulator/rectifier.
 LIGHTING SYSTEM LIMIT VOLTAGE
 INSPECTION
 Remove the front cover.

    Measure the voltage with the electric
    tester in the DC range.
 Limit Voltage: 14.70.4 V
 If the limit voltage is not within the
 specified range, check the egulator/rectifier.
 PERFORMANCE TEST
           RPM
                       3000           8000
 Position
       Day          4 A 16 V 6.3 A 16.7 V
                   1.1 A 14 V 2.1 A 14 V
      Night        (1.0A min.) (3.7 A max.)
 Perform this test with a fully charged
 battery.

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