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Headlight Nightmare: Can i just hardwire my light

Discussion in 'XJ Technical Chat' started by Seca7Fitty, Jul 23, 2009.

  1. Seca7Fitty

    Seca7Fitty New Member

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    I`m having issues with my headlight, it all started after i put a half dead battery in my seca 750 to charge for a freind, tossed it in my bike it barley started and drove down the road for a few miles then returned. After i put my battery back in my light does not work, I dunno maybe a charging issue because the battery light is on but my battery stays charged fine no issues their turn signals work fine. :evil: Is it ok to bypass power to the light via the stock headlight swith or hard wire a switch to turn the low beams on at least. Thanks
     
  2. Carvall

    Carvall Member

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    I would check the ground ground form the battery to the engine.
     
  3. Seca7Fitty

    Seca7Fitty New Member

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    Solved the problem "For Now" by, bypassing the headlight realy so the light comes on with the key. No problems so far.
     
  4. Broke_Dirty_Maxim

    Broke_Dirty_Maxim Member

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    Since you bypassed the relay to "fix" the problem, don't you think the relay is the problem? If that battery you threw in your bike was of a significantly different amperage rating, you could have "welded" the contacts in the headlight relay, and possibly caused other damage to your electrical system. Which it sounds like that is what you did.

    For the record, you are the first person I have ever heard of trying to charge a half dead battery by placing it in another vehicle. A half dead battery requires a good slow charge over time to bring it back, and that is provided it can be brought back. Doing what you did leads to nothing but problems.
     
  5. Seca7Fitty

    Seca7Fitty New Member

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    Yes i "Know" the relay is the problem and their actually the same battery`s. I know i probally shouldn`t have put the baterry in but hey not everyone is perfect like yourself. Also for the record i never said i "fixed" the problem just ruling out the relay not a permanent fix.
     
  6. Robert

    Robert Active Member

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    Seca7Fitty, have you checked your headlight fuse located in the headlight bucket? it is possible (more than likely) that when you threw your buddies battery on your bike and tried to charge it that you drew too much current (you might want to check your alternator connector now while you are about it, I'll bet your gonna find it melted) and took the 5A fuse out. When it blows, your indicator will light up and the headlight will remain out.
    Lesson here is not to put a bad or suspected bad battery on your precious (and very finicky) bike, she no likey the bad battery. It causes charging issues that may come back to bite you, with a vengeance.
     
  7. Seca7Fitty

    Seca7Fitty New Member

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    I hear that probaly going to loose to nobel prize for the battery thing, i will have to check the alternator fuse but the weird thing is the headlight indicator never came on only after i took what i thought was a burnt buld out of it, with the bulb in it was fine so as einstein pointed out the headlight relay is the problem and took the hit from the draw.
     
  8. RickCoMatic

    RickCoMatic Well-Known Member

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    You have to check the Voltage Regulator's Plug-in to the Wiring Harness.

    Pull the two Plastic Connections apart and look at all the connections.
    Particularly, the RED Wire.
    If the connector around the Red Wire is melted, you may have overloaded the Rectifier.
    In the case of the Plastic Connection melting, ...

    The overheating will allow the Wire to Unfasten from being securely seated in the Connector.
    The Wire will disengage from the opposite Terminal.

    Reposition the Wire in the Connector.
    Secure it in place with a drop of Epoxy.

    Test the Charging Circuit.
    +14.2 -to- 14.8 V Hi/Lo Limits @ 2,000 RPM's
    Steady +14.5 V @ 1,850 RPM's and above is Ideal.
     
  9. Seca7Fitty

    Seca7Fitty New Member

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    will do rick thanx for the info.
     

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