Headlight not grounding? HELP!
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Road Captain
Joined: Jun 2014
Posts: 508
Likes: 31
From: California
Headlight not grounding? HELP!
Ok riding my bike the other night, notice headlight is not on. Pull over, cycle the switches, nothing. Get her home, pull the bucket, bulb is fine. Fuses fine. Break out my circuit tester, clip the ground to the headlight bucket (where the ground wire is attached), stick the needle in the headlight socket, no light. Clip the ground to the frame and the circuit tester lights up.
So the bucket is not grounding? First time I've encountered this problem. Do I need a new ground wire or does the ground wire need to be grounded elsewhere? I recently installed a Ness fairing and had to install the DK Customs headlight bracket, but I was riding around with that setup for the last 2 weeks with no headlight issues...thanks guys
So the bucket is not grounding? First time I've encountered this problem. Do I need a new ground wire or does the ground wire need to be grounded elsewhere? I recently installed a Ness fairing and had to install the DK Customs headlight bracket, but I was riding around with that setup for the last 2 weeks with no headlight issues...thanks guys
According to the '05 FXDL wiring diagram the headlight ground (black) comes from the main harness (pin 4 at connector 38A & B).
Diagrams to be found over here:
Dyna Models Wiring Diagrams
Diagrams to be found over here:
Dyna Models Wiring Diagrams
Tourer
Joined: Apr 2014
Posts: 288
Likes: 3
From: UK
As above. There should not be a ground to the bucket, the bulb grounds to the main harness. The problem with grounding to the bucket is that unless there is another ground from the trees to the frame the lights will try and earth through the headstock bearings... bad news!
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Road Captain
Joined: Jun 2014
Posts: 508
Likes: 31
From: California
Figured it out...I guess. The harness was grounded to the inside of the bucket. Which worked fine when my headlight was mounted directly to the lower tree...but once I installed the DK customs relocation bracket, the ground was disrupted because parts of the bracket are powder coated and interrupted the ground to the frame. I built a new ground wire going from the headlight mounting bolt to the bolt on the lower tree. Not as clean as I'd like, but with the fairing on you can't see it anyway!
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