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Harness Help Please


BIGONTS

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I've been running this short harness for years now.  Last weekend, the bike died all of a sudden on the dunes.  Ran a couple of checks and the stator and coil are good, there’re about 2 years old btw.  I have an extra complete harness and ECU and bike fired up when I plugged it in thinking it was the ECU.  Now, with this harness, the bike started only when I disconnected the black ground wire.  I also jumped the kill switch/tether to eliminate the possibility of those being bad. Any ideas what could be wrong?  What could happen if I leave that ground off?  The plug with red tape on it goes to kill swith/tether and shares the ground coming off black coil plug.  I checked the Clymer’s schematics and that a ground should be there, even though the stock harness is not grounded by a separate wire anywhere.   Thanks 

post-21717-0-91770800-1477339911.jpg

Edited by BIGONTS
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Be sure the black/red wire is connected to the solid black wire when you are trying to start it. You can hook up a tether a variety of ways to that harness once you rule out the issue.

 

 

Edited to reflect hoppedups corrected info. I originally said to ground the white/black wire, which is not correct.

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Just took another look at the wiring diagram and the only thing that is grounded is the voltage regulator. Since I'm not running one as I don't have any lights, is that OK?

Yes. People may disagree, and there is a argument that the ground is needed, but I don't ever run one on the 7 or so motors I have.

 

If you tried everything else then by all means go ahead and ground all black wires back to the frame and back to the motor.

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grounding the white/black kills it

Shit yes. The black, wire is grounded when the run switch is OFF.

 

So just the red/black and all black tied together.

 

Sorry for the bad info!

 

Was trying to picture my harnesses. I have my black/white isolated and not used.

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Ok. Still trying to figure it out. Used a test light on both switches and light goes on when pushing in the button or unhooking the teather. So I assume that's normally closed? How's the oem key set up? How would that ground off the coil impact that?? Thanks

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