What causes regulator failure?
They usually fail because they’re under rated for the constant current draw. Running the motor with the battery disconnected – or even a poor contact on the battery terminals – can also blow them. The voltage regulator controls the field current applied to the spinning rotor inside the alternator.
Why is the regulator on my Harley stator not working?
The regulator protects the battery voltage and when the battery voltage climbs too high it shuts off current to ground and bleeds it off as heat. That is what the heat fins on the regulator box are for, to dissipate the heat. If the regulator did not monitor the voltage to your battery it would destroy it.
What should the charging voltage be on a Harley stator?
You can use 13 as a good all around battery voltage. That is a good healthy battery staying charged just above 12 volts. Example only: Let’s say the stator is rated for 10 amps x 13-volt battery: 10 x 13=130 watt charging system. So you have a 130-watt charging system in this example.
What kind of regulator does a Harley Davidson use?
The standard Harley regulator uses an electrical component in it called an SCR, silicon controlled rectifier, which is a little electrical switch. When the regulator sees your voltage climbing to high to the battery it shorts the stator wires to ground, which kills all the output from that leg of the stator.
Can a motorcycle run without a stator battery?
All the current required to run your motorcycle comes from your battery. The stator system charges your battery and replenishes it. You could actually run your motorcycle just fine for some time without a working stator as the battery has reserve current. Of course, the battery would eventually die.
The regulator protects the battery voltage and when the battery voltage climbs too high it shuts off current to ground and bleeds it off as heat. That is what the heat fins on the regulator box are for, to dissipate the heat. If the regulator did not monitor the voltage to your battery it would destroy it.
You can use 13 as a good all around battery voltage. That is a good healthy battery staying charged just above 12 volts. Example only: Let’s say the stator is rated for 10 amps x 13-volt battery: 10 x 13=130 watt charging system. So you have a 130-watt charging system in this example.
The standard Harley regulator uses an electrical component in it called an SCR, silicon controlled rectifier, which is a little electrical switch. When the regulator sees your voltage climbing to high to the battery it shorts the stator wires to ground, which kills all the output from that leg of the stator.
How do you test a Harley Davidson voltage regulator?
To check the regulator unplug it from the stator. Take a test light and clip it to the negative terminal of the battery and then touch first one pin and then the other on the plug that goes to the regulator. If you get even the slightest amount of light from the test light the regulator is toast.