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new guy with elecricsl problem

Discussion in 'XJ Technical Chat' started by Jons81, Jun 6, 2012.

  1. Jons81

    Jons81 New Member

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    so my 81 seca 750 has no light from the head light. i put power to it and it works but not through the harness. Is there a relay for my headlight because the switch only has hibeam and low beam no on off. does it turn on when the engine is running and is on all the time or am I missing a switch somewhere? any help would be awsome! thanks so much for the help
     
    Jons81, Jun 6, 2012
    #1
  2. Orange-n-Black

    Orange-n-Black Well-Known Member

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    I believe it comes on when the key is turned on. Have you checked the fuses and connections?
     
    Orange-n-Black, Jun 7, 2012
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  3. Metal_Bob

    Metal_Bob Active Member

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    Yes there is a relay.

    There is also a seperate fuse. (Have you check the FRAGILE/Brittle original 30 fuse panel yet? - See my signature post to see how easy it is to replace).

    SOME XJ headlights only come on when the engine is running. (I'm not sure about your model).
     
    Metal_Bob, Jun 7, 2012
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  4. KrS14

    KrS14 Active Member

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    Seca 750 headlight will only come on when there's current coming from the alternator (engine start)

    IF it doesn't, you could have alternator, or diode block problems, or old fuseboxitis ;)
     
    KrS14, Jun 7, 2012
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  5. Jons81

    Jons81 New Member

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    ok then it wont turn on till the engine starts and it hassent done that yet. i have checked the fuses under the seat and the one fuse i found behind the head lamp. thanks for all the help this is my first motorcycle of anykind
     
    Jons81, Jun 7, 2012
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  6. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    The problems that are being alluded to in regard to the original fusebox are not the fuses.

    The original clips crystallize and break all on their own.

    On the XJs with the relay-op headlight, it's a "latching relay." The headlight won't turn on until the engine starts; BUT once it is on, it will stay on, even if the engine stalls, until you turn the key off.
     
    bigfitz52, Jun 7, 2012
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