Help.....my throttle is sticking wide open.

Discussion in 'Introduce Yourself' started by Dimestore, Jul 13, 2011.

  1. Dimestore

    Dimestore New Member

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    greetings and salutations from East Texas. I have a 66cc Skyhawk motor on a Huffy Bike frame. The throttle keeps sticking wide open. This has happened several times.

    Dimestore
     
    #1 Dimestore, Jul 13, 2011
    Last edited: Jul 13, 2011
  2. rohmell

    rohmell Active Member

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    If you are using the NT carburetor, then you have tightened the carb intake clamp too much, and it has slightly distorted the shape of the cylinder in which the slide, well, er, slides.
     
  3. Dimestore

    Dimestore New Member

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    Thanks Bro......I will check it out....still learning.

    Peace!
     
  4. rohmell

    rohmell Active Member

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    Yup, just keep looking around on this forum, you will find the answers to your questions. Pretty soon, you will be helping others.
     
  5. Dimestore

    Dimestore New Member

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    Rohmell......I just returned from Vietnam and took the bike out to see if the throttle was still sticking.....its still stuck wide open and is leaking gas from the carb. I tried making sure that it was only hand tight where the throttle cable enters the carb.
    any advice?

    Dimestore
     
  6. PerryP180

    PerryP180 New Member

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    Loosening the clamp on the intake pipe is what I would try first. This might help too. I bought a second hand bike with an NT carb on it. The motor was rough running and would not idle but it got me around. One day I decided the throttle was too loose and adjusted the tension bolt. At this point the throttle started sticking when I would test pull it. I pulled the throttle cap off the carb and the previous owner had installed the barrel slide with the needle sticking up through the hole in the tension adjustment bolt(where the throttle cable slides into the top of the carb.) I installed it sticking down through the needle hole in the bottom of the carb. The motor now runs and idles great and I've had no throttle sticks. Seeing as the NT comes with no instructions I've seen, this could be an easy installation mistake.
     
  7. Dimestore

    Dimestore New Member

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    I'm gonna check that on the morrow.....thanks so much for the advice....


    Dimestore
     
  8. Texhun

    Texhun New Member

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    My NT carb would stick around WOT so I opened it up and found a burr on the carb wall where the barrel fits in, so with wet sandpaper 1000grit I sanded it down and VOILA! That fixed it didn't have a problem since. So if this helps or not good luck with the carb and safe riding.
     
  9. rustycase

    rustycase Gutter Rider

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    That is Double Difficult !

    Dealing with a prior owner's flubs, AND china QC...
    Congrats on solving that problem!

    rc
     
  10. DuctTapedGoat

    DuctTapedGoat Active Member

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    I actually cracked my carb manifold overtightening, I don't have a macro camera, so I can't really get any good pics to show you, but it's right on top and noticeable.

    I like to say this though - pull out the barrel, clean it off and put it back. If it sticks, do it again. And again, and again.

    The cleaning is only to keep you calm while you repeat.
     

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