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Wow!! that's loud

Discussion in 'XJ Modifications' started by supernube, Apr 10, 2009.

  1. supernube

    supernube Member

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    Ok. I stripped my 82 seca 650 down to the engine and frame. Did a complete rebuild and rewired the electrical for simplicity. Looks awesome, but now when I fire it the engine takes off. Instantly at 5-6 k rpm. The throttle cable is fine (not too tight) and the choke is good too. I'm stumped. Presently pulling the carbs apart since once during the rebuild they took a tumble off the table. Any ideas or advice would be appreciated
     
    supernube, Apr 10, 2009
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  2. redfire

    redfire Member

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    perhaps reversed the choke and throttle cables, seems to be a common occurance. do you have your idle thumb screw in too much?
     
    redfire, Apr 10, 2009
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  3. greggvickrey

    greggvickrey Member

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    Super, make sure when you got the carbs off that they pass the clunk test. You may have a sleeve hanging keeping your revs up.
     
    greggvickrey, Apr 10, 2009
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  4. supernube

    supernube Member

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    idle screw is all the way out and i made sure the trottle cable actuated the correct parts. what's the clunk test?
     
    supernube, Apr 10, 2009
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  5. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Please add your location to your profile (location and climate can affect answers) and some details about your bike, like mileage, to your sig.

    The clunk test is ensuring that all of your carb slides can fall with a resounding "clunk." If not, you gots some polishin' to do.

    There are a number of possible causes for your problem the more information you can provide the better.
     
    bigfitz52, Apr 10, 2009
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  6. supernube

    supernube Member

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    passed the clunk test. I'm in portland, or which is why I rewired. the rain here is hell on an old bike's electrics. what else do you need to know. by the way, thanks for the help.
     
    supernube, Apr 10, 2009
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  7. dwcopple

    dwcopple Active Member

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    vacuum leak
     
    dwcopple, Apr 10, 2009
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  8. P2Fabrication

    P2Fabrication Member

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    i second the vacuum leak^ :wink:
     
    P2Fabrication, Apr 10, 2009
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