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Thread: XJ550 electrics?

  1. #1
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    26th December 2012 - 15:30
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    XJ550 electrics?

    Hi anyone have any k owledge on checking starter relay and or ignitor on 1983 xj550 yamaha. Lights on but mo one home. That is turn the key on green nudtral light comes on , press the starter buttpn and nothing.? Cheers Tony

  2. #2
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    1st September 2007 - 21:01
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    Quote Originally Posted by metones View Post
    Hi anyone have any k owledge on checking starter relay and or ignitor on 1983 xj550 yamaha. Lights on but mo one home. That is turn the key on green nudtral light comes on , press the starter buttpn and nothing.? Cheers Tony
    Check it's not in gear and/or the side stand cut-out switch is not playing up.
    When life throws you a curve ... Lean into it ...

  3. #3
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    22nd March 2007 - 10:20
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    Kill switch?
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  4. #4
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    Quote Originally Posted by FJRider View Post
    Check it's not in gear and/or the side stand cut-out switch is not playing up.
    No has no sidestand cutout saefty switch.poss rdmoved before i bought the hike. Love the old girl. Just sold my cbr1000 last month so need to get the xj tunning. Doesnt look like anythkng is wrong when i opened the ignitor. The starter solinoid looks ok ?sorry abojt spelling bloody andriod ta let small for us lld buggas

  5. #5
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    Quote Originally Posted by metones View Post
    The starter solinoid looks ok ?sorry abojt spelling bloody andriod ta let small for us lld buggas
    That would be my next guess ...

    But have a look at HOW the side stand cut-out switch was removed/rewired. Sometimes it isn't that well done. And gets a short in what remains ....

    Even check if there's crud behind the starter button. It's a nice spider house in there ...
    When life throws you a curve ... Lean into it ...

  6. #6
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    26th December 2012 - 15:30
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    Poss, will recheck it but bike has been running great for few years,even under preasure at ruapuna have a godays. Was sitting outside under a tarp for few months after last big earthquake then in the garrage. Started once then after about 6 month and even with a new battery nothing but the green light. Looks kike a job fof the auto elecs,, maybe. Thanks

  7. #7
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    17th July 2005 - 22:28
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    Get a cheap multimeter, check it's getting 12v to the solenoid and that it's getting 12v from that to the starter motor
    If you have a mint battery and have 12v at the sstarter, clean the earths
    If cleaning connections and replacing the starter wire doesn't help, I' say it's a dud

    If you don't get 12v at the starter, but do at the solenoid, check the kill switch for continuity and the side stand switch circuit
    Then check the starter switch (may as well when you do the kill)
    then all other associated circuits.
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  8. #8
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    3rd March 2008 - 11:55
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    There is relay or two, neutral clutch and sidestand switches, and a diode block that allow/don't allow the starter to operate.

    Start with the basics, and stick a wire straight from the starter solenoid to the battery and see if it turns over, if that works then it's time to start looking at the others stuff.

    Maybe could have a quick look if you're somewhere close to where I am.....
    Riding cheap crappy old bikes badly since 1987

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  9. #9
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    A test lamp is cheap and invaluable for this kind of problem.

    Put one side on earth. Then use the probe on all fuses. Lamp should light both side of all fuses this shows circuit is "hot". If only hot one side fuse may be blown. If neither side is hot, fuse is on a circuit that is not live.

    Then put lamp on solenoids "large" contacts, one should be hot, on battery side.

    Then use probe on small wire into solenoid, (sometimes there are two wires, one from start switch one to earth.)

    One from starter switch should be hot when start pushed.

    If neither light then fault is towards ignition switch.
    If both light solenoid has no earth - it may get earth through a safety switch on stand, clutch, kill switch etc.

    If circuit from start switch hot, earth ok and one large terminal on starter solenoid hot, put lamp on other side of solenoid. It should be hot when start switch is pressed. If its hot when switch pressed start motor may be problem.

    Borrow screwdriver off someone you don't like. Use it to bridge (short out) the two big terminals on starter solenoid. If bike cranks solenoid faulty, and screwdriver now fucked.

    Hope this helps.
    David must play fair with the other kids, even the idiots.

  10. #10
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    I have bits you could swap to try and isolate the problem xjbikes.com is the resource for those bikes, pretty sure that issue has been covered there a few times if you search it
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