Throttle cable Issues

Discussion in 'Motorized Bicycle General Discussion' started by crabdance, Jul 30, 2008.

  1. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Re: Throttle useless

    That sounds about right. A lot of these throttles, you have to do a little doctoring on them....in fact the kits need a little help here and there...which is half the fun.

    Also, look at the top of the carb, there is an adjuster there too. Screw it in or down for less tension on the cable.
     
  2. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    Re: Throttle useless

    As BGJ says - probably something going on at the top of the carb where the cable enters. You want some little slack in the housing. The housing should be free to move.

    Turning the screw in (right/clockwise) increases idle speed. So back her out...lefty, loosey, ccw....
     
  3. chadmashman

    chadmashman New Member

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    Re: Throttle useless

    Thanks. I'll try the advice this evening and post the results.
     
  4. PublicMember

    PublicMember New Member

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    Re: Throttle trouble.

    My bike is now up and running, there are still a few bugs that need to be worked out but now that I know it works those are no big deal. Thanks for all the help with my first, build. there will be more bikes to come.
     
  5. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Re: Throttle trouble.

    What was it?!?!
     
  6. PublicMember

    PublicMember New Member

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    Re: Throttle trouble.

    The bike? Schwinn jaguar. The problems? the chain tensioner won't stay put, i put a strip of metal next to the bar to make it stay on but that fell out and the chain tensioner fell in and broke one of the spokes, I did a quick fix(at my friends house) by wrapping the bar with gorilla tape and then putting it on. tomorrow I will set it in the right place with some epoxy putty stuff. also I guess i didn't put the rear wheel back on right because the rear brake isn't lined up right and is always in contact with the wheel. and still need to do some tweaking with the throttle. luckily I don't have school or work tomorrow so I'm going to try and tackle the problems.
     
  7. chadmashman

    chadmashman New Member

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    Re: Throttle useless

    I junked the twist throttle and attached a cheap brake lever. Worked like a charm. Cruising and loving it...
     
  8. 1_2Mini

    1_2Mini New Member

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    Re: Throttle useless

    I have same problem, but i've checked throttle and it's working properly. I think maybe my carburator float is bad or something because my engine is always at near full throttle and it smokes a lot now.
     
  9. deacon

    deacon minor bike philosopher

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    Re: Throttle useless

    gear shifters work best as substitute throttles in my opinion.
     
  10. Scotty

    Scotty New Member

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    Re: Throttle useless

    Another vote for gripshift throttles, just pop the click mechanism out, then you can silver solder a small piece of brass tube (from the hobby shop) on the end of the cable.
     
  11. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Re: Throttle useless

    Exellent idea.
     
  12. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Re: Throttle useless


    A float problem wouldn't do that.

    I wouldn't ride it too long like that either or it will become garage decor.
     
  13. jasonh

    jasonh New Member

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    Re: Throttle useless

    If you keep the clicker in there, it'd be like cruise control with presets :)
     
  14. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    Re: Throttle useless

    I am really hesitant to ask this. When you put the cable in the carb slide did you line up the little bump on the carb wall? If not there is your prob. It's tiny on these little carbs.
    The slot on the slide, fits the bump in the carb.
     
  15. generallee

    generallee New Member

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    throttle cable snapped

    I was riding tonite, stopped then let out the clutch, gave it gas and the throttle cable snapped right at the round piece that snaps into the twist throtte. I tried clamped a led fishing sinker on the cable but it slipped out of the sinker. Any ideas as to fixing this?
     
  16. xPosTech

    xPosTech The Old Master Motorized Bicycle Builder

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    Re: throttle cable snapped

    You might try a cable end clamp like the clutch cable end. Lowes has them.

    No promises though.

    Throttle cable can't be that expensive. Bell makes a 4 cable replacement set. The gear shift cables have a large barrel on one end small barrel or little keg on the other. Less than $10 ($5?) at Wally World.

    Ted
     
  17. 1_2Mini

    1_2Mini New Member

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    Re: Throttle useless

    Hmmm. I did not see a little bump, but I do know the slit in the carb slide is facing towards the air inlet.

    Another interesting thing is when I took apart the carb for first time the throttle cable pulled out the carb slide so hard that it got jammed at inlet. I had to force it back down, but is it supposed to block off the inlet completely? Because mine only goes about 3/4 down at 0 throttle. I'm worried that maybe it is getting stuck at full throttle.
     
  18. jasonh

    jasonh New Member

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    Re: Throttle useless

    there is a angled notch on one side of the slide at the bottom. this notch needs to line up with the idle adjustment screw. If it's only 3/4 down, sounds like the bottom of the slide is hung up on the screw.
     
  19. generallee

    generallee New Member

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    Re: throttle cable snapped

    I got a piece of metal and soldered it at the end and that worked ok but now the throttle grip isn't workin right. I think it's catching on something inside -ill look at it tomorrow and see wat i can find. any ideas?
     
  20. hiker472

    hiker472 New Member

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    Re: Throttle useless

    If you look down the hole of the carb, you'll see that bump...it's on the side where the fuel inlet is.

    Once when I was cruising down the road, I gave it some gas and my throttle stuck. When I got it home, that slide wouldn't move period. When I did manage to get it out, no matter what I did, I couldn't get it to slide in the way it's supposed to. It was like the alluminum had shrunk or something. I had to put the slide to a grinding wheel to make it work again.

    Hopefully this isn't the problem with yours.
     

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