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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
2003 FLHT with carbeurator.
I noticed my voltage meter going up and down, up and down, along with my head/spot lights. It did not matter what the rpms were doing other than at idle. While sitting and warming up, the voltage was fine. No fluctuation. When I put it in gear and started up the road, I noticed my lights got real dim then gradually got brighter and brighter then they got dim again and kept doing this all the way home. It was about 40 degrees out. I took it out last weekend in 70 degrees and no problem.I searched the forum but could not locate anything similar. I was wondering if it was just the cold weather.
Have you checked your battery cables and grounds? It may be a good place to start. Also, check the output of your alternator by a volt meter at the battery.
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