Question about 2008 Harley Davidson FLHRC Road King Classic

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Vintage harley cutout relays keep frying and headlight keeps blowing out thinking my 32 e gen has too much output but I have it dialed all the way down. maby i need a whole bunch of lights to burn up all the excess juice! the correct model # was not listed in the list, its a 1940 hd ulh

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Your voltage regulator is not working properly. You may have to convert to a more modern style regulator. Get a voltmeter and measure voltage at the battery with bike off, should be 12 to 12 1/2 volts. Then measure voltage with bike at idle and then at high RPM, should never go over 14 and 1/2 volts. Also bad connections, dirty, rusty, loose etc will cause the gen to work harder and put out high amps. Make sure you have good clean connectors at the battery posts also. GOOD LUCK.


Posted on Aug 26, 2009


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You have a short in that circuit, check for loose or bared wires in the headlight or blinkers or disconnect any plug. Leading to those parts one at a time until the fuse stops blowing then trace those wires to the problem

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Hi, Ksivac if your headlight is not working, intermittent, only one beam works, keeps burning out, blinking, dim or surges from bright to dim to bright the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your head light bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
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I know this sounds aomewhat general, however please give the following some thought:
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