Question about Harley Davidson Motorcycles
I have only high beam that works, when I use the switch for low beam the headlight turns off and the breaker switch clicks. What is causing this to happen?
My only thought would be an open wire touching someplace to ground causing a direct short on the low beam. If this is the case, get on it right away, I've seen bikes burn from similar issues in the past. If you can't find the issue, get help Man. This is a good sooner than later deal.
Trace out that left side switch area and if no luck of issue, I would trace the headlight on back. Best places to look is where there are area's crimped or tight against the frame ect... Remember, it's all DC voltages. The circuit is either open not letting the voltage run what ever part ect... or closed loop making things turn on, completing the circuit
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
How's the battery holding up? Check the voltage on the battery and also check to see if it is bubbling a lot. 13.8V is optimal for the battery charging with the engine running, but up to 14.4 is common. If it's running a lot over that and the battery is making a lot of bubbles, probably the regulator is the problem.
If the battery is low on electrolyte, the regulator doesn't have anyplace to dump electrons, and that could also be a problem, so make sure the battery connections are good and tight, too.
Posted on May 21, 2009
Energy must pass through your switch (hi/low or momentary), then to your headlight, and finally to ground. An interruption anywhere will cause the light to go out. Since both your hi and low beams are not working, I suspect a bad ground connection somewhere. Probably in your switch, but if it is easier to check the headlight socket I would check that too. Use a multi-meter, see if you have power to the switch. If you do, ground the negative lead coming to the switch and see if your headlight comes on. If it does, you know you have a bad ground.
Posted on May 21, 2009
There seems to be some short in the circuit of the high beam, you will have to follow the high beam wiring, best would be to get the color of the high beam wire frm the head light bulb socket and trace it along you will sure find somwhere the along it the short.
Check the light switch and the blinker switch too.
Hope this helps!
Posted on Jun 25, 2009
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