How do you test a voltage regulator on a motorcycle?
To check the regulator, connect the meter leads to the bike’s battery as it’s running. The reading should not be higher than 14.5 volts or lower than 13.5 volts. If the reading is higher, this means the battery is overcharged and you may need to replace the regulator rectifier.
What are the symptoms of a bad voltage regulator on a motorcycle?
Symptoms of a bad motorcycle charging system
- Motorcycle won’t start. This one’s the big, obvious one. …
- Spluttering as you drive. When voltage is low, it’s hard to keep the motorcycle running.
- Lights light up and dim as you rev. …
- Battery warning light comes on.
What are the symptoms of a faulty regulator rectifier?
Probably, the most common symptom associated with a bad regulator is flickering, dimming, or pulsing lights. To be more specific, you may notice that the vehicle’s: Headlights fluctuate between bright and dim, without you doing anything. High beam isn’t working as expected.
What causes voltage regulator failure?
It might be due to a host of other causes, including forgetting to switch off your lights, a problem with the alternator, or simply an old battery that needs to be replaced. But it could also be because of poorly managed current due to a bad voltage regulator.
How does a 2 wire voltage regulator work?
It is a zener diode voltage regulator. It cuts off the tops of the positive ac phase and almost all of the negative. Basically it shorts excess voltage to ground. The input resistance would be the coil itself in bike applicaton.
How do I test a single phase regulator rectifier?
Start the motorcycle and rev the motor to 5000rpm. Using the multimeter, test the same battery terminals again. You should receive a reading of 13.5 to 14.5 volts if your rectifier-regulator is functioning correctly.
Can a voltage regulator be bypassed?
Turn off the engine and remove the voltage regulator connector. Connect a jumper wire between the “A” and “F” terminals of the plug, as shown at right. 2. Once the regulator has been bypassed, repeat the load test.