Question about Harley Davidson Motorcycles
The switch seems like it is working but does not even try to change
Hi Mycheal, you might have a bad bulb or your high/low beam switch is defective. Use a test lite to check continuity at the switch.
Posted on May 07, 2015
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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
The two most likely culprits are the ignition switch and the starter button. The starter button, in the right handlebar switch assembly, performs two functions: cranks the electric starter - and, at the same time, turns off the headlight. Sometimes the electrical contacts inside the starter button burn out and fail to reconnect the headlight circuit when the button is released.
You can easily determine which one is the problem by simply checking for battery voltage at the headlight fuse. No voltage means the likely cause is the ignition switch. Also inspect the large plug on the bottom of the ignition switch. Sometimes the individual connectors will corrode, melt, or push themselves out of the plastic housing.
If there's voltage at the headlight fuse, then plan on replacing the right handlebar switch assembly.
Posted on Nov 03, 2009
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