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Serious Carb. Problem Help!!!!!

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    #1

    Serious Carb. Problem Help!!!!!

    I just complete the Stage 3 jet kit on my 80 1100E to find that the Fuel mixture screw on the #4 carb is stripped out. The other 3 are fine. What can I do to correct this very serious problem. Is it possible to heli coil it or do I have to start looking for another #4 carb. body. My funds are limited so an advice would be helpful.

    Thanks
    The Beast
    Tags: None
    #2
    there are some heli coil type thread repair kits that might work however you are probably SOL and should look for another carb

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      #3
      take it to a machine shop. They can drill out the old without boogering the threads. Then you can buy new a new mixture screw assm. I had to do this as well, but lucky for me, My dad own's a machine shop

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        #4
        Two different answers to one question... the real question is this: are the threads in the carb trashed, or is the head of the mix screw trashed, so you can't adjust or remove it?

        If it's just the mix screw slot on the top, get a small, good drill bit like 1/8" and an EasyOut screw extractor. Drill a hole where the slot head used to be and use the EasyOut to back out the mixture screw. If the threads are trashed on the carb body itself, you really should find a new carb body, or you can try and use a small strip of teflon tape around a brand new mixture screw.

        Good luck Greg.
        Currently bikeless
        '81 GS 1100EX - "Peace, by superior fire power."
        '06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."

        I ride, therefore I am.... constantly buying new tires.

        "Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt

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          #5
          My mixture screw is fine its the carb body that is stripped. I have taken the mixture screw and the only damage found was a bad spring and washer. I can place the mixture screw back in but it won't catch a thread. I am looking for a new #4 carb. body at this time but so far I have had no luck. If anyone has one or knows where I might be able to get one please let me know. I guess this explains why I was running so rich last season

          The Beast

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            #6
            are the carb bodies different for the different sized gs motors?

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              #7
              I am not sure. I am running the orginal carbs. which I belive to be 34mm Mukunis. I would think they use the same carbs for others models but I not sure.

              The Beast

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                #8
                I have a 34mm #4 carb if you can't find one Float posts good, mix screw still in carb with emission plug send PM if interested was from a GS1000 should work --use your jets

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                  #9
                  Motorcyclecarbs.com is a place to go to. Give him a call. He works on GS carbs all the time. It doesn't cost but a call for professional advice.

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