Thread: Battery Voltage
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Old 11-09-2019, 06:48 AM   #14
BobT
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Quote:
Originally Posted by CarloL View Post
Thanks

Mine is a vacuum mechanical fuel pump

I constantly drive with the headlight on , maybe not too much draw on the battery when driving

In general everything on the wiring harness looks in good condition, I try to keep things topped up with ACF50 to prevent corrosion
If everything is working as it should then running with the headlight on will not draw anything from the battery. The battery only exists to start the bike and the alternator takes over when the engine is running.
As you have stated that you have 13.8 volts at tick over then the alternator IS working.
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