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Tail lights shorting out and need to find a way to figure out where the problem is

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There must be a short perhaps caused by the wiring to anything on that circuit touching earth. Only a good inspection of the wiring for the tail lights and the instruments will find it and concentrating on the areas where th wiring bends like around the steering head might find it faster.-------- Also check the tail light fuse, if its causing the short.Remove the fuse and clean it and re- fit it. Fuse is in the box under the left ram air cover. Should be labeled "Signals" on the diagram on the fuse box cover, in most of the Yamaha motor cycles.You will have to test for voltage when brake is applied.If the tail light shows voltage,there is power.If no voltage, then there is short.The tail light bulb, at the back of bulb, there will be a connector from where, you will have to follow the wire till the front wiring harness.If there is short, the wires will show voltage, even without depressing brake and turning the bike ON.The shorted wires must be getting power directly from battery, as per that , you can re-wire the tail light.-------- You can run additional wire from tail light bulb socket to main wiring harness and see, if tail light works properly.If its works, that means old wiring is causing the short and wirings needs to be rebuild.But if tail light not working with new wiring too, then its ground issue, the connections are getting in contact and causing the short.-------- As per that you can start troubleshooting.---------- this should help.Thanks.Helpmech.

Posted on Apr 10, 2011


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