Sportster Voltage Regulator Test

Sportster Voltage Regulator Test. After installing a new battery, it would not turn motor over after a few weeks. How to test a Negative voltage regulator with DMM?

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This test only tests one circuit in the regulator, so even if it passes this test it may still be no good. This usually indicates a bad voltage regulator. Test the Diode Function of the Voltage Regulator.

Voltage regulators are commonly found in cars and other electronic equipment.

Whatever tests I could do now, I'd have to do them while jumping the car from my other car.

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Change the setting on the multimeter to Diode. Clamp the multimeter positive lead on the AC output wire and the negative lead on the battery. Measuring the Input Voltage When test the voltage of a voltage regulator, we first check the voltage from the input pin to ground.