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Won't idle

Discussion in 'Hangout Lounge' started by mooch, May 12, 2012.

  1. mooch

    mooch Member

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    I have a 1982 XJ650J Maxim, I cleaned the carbs at the beginning of winter and the bike was running great. Since then I have put new carb manifolds(carbs to engine) on it and now it does not want to stay running. It will run fine with the chock open a little. I was thinking that the carbs may need cleaned again. Any info would be greatly appreciated. Thanks!
     
    mooch, May 12, 2012
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  2. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    I would pop the carbs back off and see if the jets are dirty or have dried gas in them.

    MN
     
    MN-Maxims, May 12, 2012
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  3. mooch

    mooch Member

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    That's what I was thing also. Thanks MN-Maxims.
     
    mooch, May 12, 2012
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  4. mooch

    mooch Member

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    Also was wondering if it could be anything else?
     
    mooch, May 12, 2012
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  5. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    If you have to run with the choke on its not getting the right amount of fuel to run correctly.
    Pull the fuel line and check your fuel flow, if that's ok it's in the carbs
     
    MN-Maxims, May 12, 2012
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  6. mooch

    mooch Member

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    I thought about that. I did switch the vaccum petcock for a regular on-off non-vaccum style one.
     
    mooch, May 12, 2012
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  7. mooch

    mooch Member

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    I just pulled the fuel line, it looks like it is flowing good but it may not be enough I'm not really sure.
     
    mooch, May 12, 2012
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  8. Spoodle44

    Spoodle44 Member

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    Pull the carbs, remove the fuel/air mix screws/springs/washer/o-rings. Cover the tiny holes in the top of the venturi with your finger and put cleaner in the fuel/air mix screwhole. It should come out the siphon tube in the bowl if I'm not mistaken. Or i could be an idiot. Not sure!
    Anyway, if ya have fuel and can't idle, carbs sounds right.

    However I'm starting to think dirty carbs are responsible for everything. Even the dog crapping on the floor.
     
    Spoodle44, May 13, 2012
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  9. mooch

    mooch Member

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    Just cleaned the carbs again, everything is spotless and looks great. Still wont idle without the chock being on. Has great fuel flow. What else if anything could it be? It is also backfiring now with new spark pugs.
     
    mooch, May 17, 2012
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  10. Mr.Etobicoke

    Mr.Etobicoke Member

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    Sounds like a vacuum leak.....and since you just changed the carb maniflods, I would start there.

    Kenneth
     
    Mr.Etobicoke, May 17, 2012
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  11. mooch

    mooch Member

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    I do have a problem with the new vacuum nipples on the manifolds being to loose.
     
    mooch, May 17, 2012
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  12. Mr.Etobicoke

    Mr.Etobicoke Member

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    Try spraying some carb cleaner around the manifolds with the engine running....if the engine speeds up, you have found your leak. A small vacuum leak will cause your engine idle problems.

    Kenneth
     
    Mr.Etobicoke, May 17, 2012
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  13. mooch

    mooch Member

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    I will try that cause I am running out of things to try. Thanks!
     
    mooch, May 17, 2012
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