Need Help With Throttle Hook up

Discussion in 'Motorized Bicycle General Discussion' started by G22SANDERS, Jun 16, 2009.

  1. G22SANDERS

    G22SANDERS New Member

    Joined:
    Jun 14, 2009
    Messages:
    2
    Likes Received:
    0
    hey im garett i just joined the site a couple of days ago and iv had a few questions that id like to get answered. i just got my 80cc bike kit from boy go fast and yes ive heard thats not really a good person to buy from but i haven't had any problems yet. i just got the engine to run today after assembling it all yesterday. it runs great except for one little thing the throttle seems to be stuck wide open. ive tried alot of things hoping that i could fix it myself. i thought it was the slide not moving causing the problem but im not sure ive looked at alot of posts and just cant seem to find an answer a little bit of help or advise would be appreciated.
     
  2. Cabinfever1977

    Cabinfever1977 New Member

    Joined:
    Mar 23, 2009
    Messages:
    2,290
    Likes Received:
    1
    with engine off,take the airfilter off twist throttle back and forth and look in carb and see if slide goes up and down,the groove in slide goes opposite the carb screw.
    make sure your throttle cables are not binding or tied to bike tight or they will cause the throttle to stick open,plus with these cheap throttles sometimes they dont snap all the way back and you have to turn the throttle forward to idle down.
     
  3. G22SANDERS

    G22SANDERS New Member

    Joined:
    Jun 14, 2009
    Messages:
    2
    Likes Received:
    0
    thanks for the advise cabinfever, ive been looking for answers all day and finally one that makes sense (not some crappy instruction manual). ill give it a try in the morning
     
  4. Forbisher

    Forbisher New Member

    Joined:
    Dec 28, 2008
    Messages:
    119
    Likes Received:
    1
    Full choke the running engine and if it just slows it down a bit and doesn't kill it
    you have a massive air leak probably where the carb slides on the intake tube

    maybe elsewhere too.....like the gasket at the barrel

    I include an O ring to seal between there or you could use some kind of sealant

    Get a # 11 O ring from Home Depot
    3/4" OD x 9/16" ID x 3/32"

    LUBE your throttle cable good too as they come dry and may break if you don't
     
    #4 Forbisher, Jun 17, 2009
    Last edited: Jun 17, 2009
  5. Cabinfever1977

    Cabinfever1977 New Member

    Joined:
    Mar 23, 2009
    Messages:
    2,290
    Likes Received:
    1
    yeah what he said.
    putting a o-ring in the carb to intake really works good and stops the air leak and a little sealant on the intake helps.
     
  6. Finfan

    Finfan New Member

    Joined:
    Aug 29, 2008
    Messages:
    871
    Likes Received:
    1
    If it is an air leak put a bead of black permatex/RTV around the end of the intake before you put the carb on. That will usually seal it nicely.
     

Share This Page