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Discussion in 'XJ Technical Chat' started by leadboots, Apr 12, 2008.

  1. leadboots

    leadboots Member

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    Ok so this is the problem my bike will run good for a few days. Then i will go out and try to start it and it just starts over flowing gas out of the airbox...I dont know wat is going on. The floats are set right but it still does this... anyone know wat could be happening here. This has happened three times now i am gunna lose it on this bike soon lol...HELP ME
     
  2. ArizonaSteve

    ArizonaSteve Member

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    Re: bloody hell

    It's simple, floats are sticking or needle valves are leaking.
     
  3. leadboots

    leadboots Member

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    Re: bloody hell

    how can you tell if the needle valves r leaking?
     
  4. Robert

    Robert Active Member

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    Re: bloody hell

    Lead, would you please rename your thread. The language is not in keeping with the environment we foster here. I appreciate your cooperation.
    You can tell the needle valves are leaking when the float bowl over fills and fuel pours into your airbox. You have two options.
    1. Drain your fuel tank. Run SeaFoam or like product through the fuel system. The whole can to a like quantity of fuel. Run it into the system. Fire it up and get the mixture into the carbs. It will run poorly and smoke like a chimney but that is ok. Once the mixture is in the system, shut it off and leave it over-night. Next morning, pour the gas you drained off back into the tank and fire up. It'll smoke for a bit but settle down shortly. If all goes well, your seats and needles will be clean.
    2. Pull the carbs and give them a cleaning. Be prepared to replace the seats and such. These parts do wear over time and unless they are in "like-new" condition, are best replaced. Inspect the seats and needles under a magnifying glass. Any imperfections require replacement.
    Best news I can give you amigo. Hope you get away with the cheap easy solution.
     
  5. leadboots

    leadboots Member

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    when you guys say needle valves are you talking about float valves or something else. I dont work on carbs alot....

    I bought all new float valves and seats and seals pretty sure they have never been changed before. When I bought the bike it sat for a few years in a shed. Hopefully this works. thank you for the help
     
  6. Robert

    Robert Active Member

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    I'm sorry we confused you. There are two needles in your carburetor. The float needle (sometimes called the float valve) and the main jet needle.
    Hmmm... if you bought and installed new ones, was that before it sat or after? If it was before, you gots cruddies in there. Pull and clean.
    After? It has gummies in there, pull and clean. Either way, your needing to pull them again. Sorry 'bout the bad news.
    However, the ray of sunshine is you will be intimately aquanted with your carbs when you get done!
    Don't forget to polish the float pins when you get in there!
     

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