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Old Mar 11, 2012 | 12:37 AM
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So I was changing the headlight on my '93 FXR from the original chrome one to a new black one. Before I tightened it all down I twisted the wires from the light to the lead and no light: the damn thing doesn't work. So, I decided to screw it and put back on the original, testing it first, and that doesn't work now!

The original had the ends of the wires (from light to wire harness) sottered. Is it possible that just wrapping the bare wires around each other isn't giving it enough of a connection? Is there a fuse to check? Any help would be appreciated, other then telling me I should have left well enough alone - that I know.

Many thanks.
 
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Old Mar 11, 2012 | 06:51 AM
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Twisted wires?! They could easily come apart while assembling the light. Certainly I wouldn't trust them. You can get crimp connectors for a few bucks, including a crimping tool, from most auto parts stores, both bullets and flat spades. They will give you proper connectors you can easily pull apart when needed.
 
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Old Mar 11, 2012 | 11:48 AM
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I always solder the wires even if I'm using connectors I solder the wires to the connectors and shrink wrap the ends.
 
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Old Mar 11, 2012 | 12:24 PM
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Originally Posted by RidemyEVO
I always solder the wires even if I'm using connectors I solder the wires to the connectors and shrink wrap the ends.
This is your best option for a bike as it keeps out the water.

Your twisted wires my have come apart or partially unconnected or grounded out on something and could be your problem.
 
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Old Mar 11, 2012 | 12:29 PM
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I try a solder - could that be it? Not enough of a connection by just twisting them together? Is there a way to test the wires leading from the harness before I solder? Electrical isn't my thing so a detailed explanation (for a test) would be much appreciated.
 
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Old Mar 11, 2012 | 01:06 PM
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Okay, I have one of those tools that you touch to wires and see if the little light comes on (with the roach clip that I assumed gets grounded). One of the leads lights the tool, the other one doesn't. What's this mean?
 
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Old Mar 11, 2012 | 01:56 PM
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sounds like you have power going to the light, make sure you have the wires tied to the proper wires on the light. 1 wire is prob low beam, 1 high beam, and 1 ground wirehave someone hold the light cloe to wires and touch them together with switch on and see which wires do what. get them right and then solder and shrink wrap at least crimp connect and shrink wrap
 
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Old Mar 11, 2012 | 02:11 PM
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Got it.
But there's only two wires. And again, only one of them had power. I'll try crimping and seeing if it works ( the new light had 3 wires, the original that I'm going to just put back on had two).
 
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Old Mar 11, 2012 | 02:23 PM
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I think I got it! With the new light (three wires) I got it to work. Now, where do I attach the ground wire coming off the light? To test it I had it on the jugs but where can I fasten it permanately?
 
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Old Mar 11, 2012 | 05:36 PM
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ya 1 of those 3 needs to goto ground, it can go to any screw that is into metal but preferebly to heavy metal like the frame. sounds like the factory light was chassis ground with no wire? if so the headlight bucket is grounded and you can ground that wire inside the bucket on a screw. think of power as a loop, it has to leave the + side of the battery and go through a component and make it back to the - side of the battery.
 
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