Question about 1979 Harley Davidson XLH 1000 Sportster

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I have a 1979 harly davidson soprster, i have re

I have a 1979 harly davidson sporster 1000cc, i have re wired the bike and have been told that to make the generator warning light work properly i need to install a resitor in the wire that goes to the generator warning light, this is not shown in the wiring diagram i have. Can you tell me what type/rating this should be?

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  • Anonymous Mar 21, 2014

    Where the wire go's into the brush. The wire just came out. I twisted it back in as best I could but the bike only charges at 12.47 and when I cut the lights on the voltage drops to 11.80 or less. When I cut the lights off the voltage will go back up to 12.46 and hold there till I cut the lights on again. Is there anyway to fix the wire and carbon brush? I can not find a replacement brush. It is a Cycle Electric DGV-5000 generator



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There is no need for a resistor of any kind. The light should be run with the feed coming from the power breaker and the ground side connected to the “A” post of the Generator. Resistors were added by some companies to prevent the light from flickering at low RPMs. If the Generator is working properly there is no need for a resistor. Be sure to polarize the generator properly as failing to polarize the generator is the most common cause of a Gen light that won't go out.

Posted on Jun 29, 2009


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