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        2. Rectifier/Regulator

CHECKING THE RECTIFIER/REGULATOR

1. Check:
    • Charging voltage

      If out of specification -> Replace the rectifier/ regulator.

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Charging voltage
+14 VDC at 5,000 RPM/Min
      a. Attach the engine tachometer to the spark plug lead of the front cylinder.

      b. Connect the pocket tester (DC 20 V) to the battery terminals as shown.
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Digital tachometer
90890-06760
YU-39951-B

Pocket tester
90890-03112

Analog pocket tester
YU-03112-C
          • Positive tester probe -> positive battery terminal "1"

          • Negative tester probe -> negative battery terminal "2"
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      c. Start the engine and operate it run at approximately 5,000 RPM/Min.

      d. Measure the charging voltage.

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