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Thread: Go Kart/small engine issue help?

  1. #1
    Ohh Hell yeah.. Sava700's Avatar
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    Go Kart/small engine issue help?

    I'm going to try to explain this as best as I can...

    I've got a 10Hp Tecumseh Engine Off-road Gokart with Torque Converter ... This thing is fun to mess with and I'm having a slight issue with its starting up and stopping. I just put a new belt on it which drives the rear wheel chain sprocket for the back wheels.

    It has no gears just gas and break... which both work just fine. Problem i'm having is when I turn the key (electric starter) it will start up but at the same time the damn thing starts moving as its turning over. If I hold down the break to stop it after its started then it shuts off. So I'm sitting here with this WTF moment having no idea what the hell is causing it.

    It looks like this but of course I got mine in camo

    http://catalog.carterbro.com/Kart_2910.html

    So I would love to hear of a suggestion to fix this.. its gotta be something simple cause it just did it over night pretty much when I was riding it a while back and everything else works so its like something came out of adjustment.

  2. #2
    Senior Member loop2kil's Avatar
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    sounds like the clutch needs to be replaced.

  3. #3
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by loop2kil View Post
    sounds like the clutch needs to be replaced.
    that would have to be the whole torque converter...

  4. #4
    Moderator YeOldeStonecat's Avatar
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    Yeah torque converter. Is it a centrifical weight one? Or hydraulic?
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    Certified SG Addict CableDude's Avatar
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    auto forum?




    j/k.

  6. #6
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by YeOldeStonecat View Post
    Yeah torque converter. Is it a centrifical weight one? Or hydraulic?
    well its not hydraulic...

    the pulley's look like this



    http://www.gokartsupply.com/4044seri.htm

  7. #7
    Ohh Hell yeah.. Sava700's Avatar
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    I'm wonderin if the belt is required to go on a certain way with this model or do the pulleys have to be a certain distance away from each other since I've had to pull the engine in to move them closer to put the new belt on then push it away and lock the bolts back down.

  8. #8
    Ft. Couch! morbidpete's Avatar
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    clutch!

  9. #9
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by morbidpete View Post
    clutch!
    what? keep posting pete

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    Ft. Couch! morbidpete's Avatar
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    Quote Originally Posted by Sava700 View Post
    what? keep posting pete

  11. #11
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by morbidpete View Post
    There ya go!!

    but anyway.. I'm going to try turning the belt around tomorrow and adjusting the distance the pulley's are from each other and see what that does... I figure it something simple or at least I hope so.

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    Disciple of Doom SeedOfChaos's Avatar
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    ex-WoW-addict

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    R.I.P. 2018-07-16 RoundEye's Avatar
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    Talking

    I doubt it has anything what so ever to do with the clutch, unless itís frozen up somehow. Sounds more like trash in the carburetor to me or idle adjustment. The carb is idling higher to compensate for an air or gas orifice being stopped up.
    Last edited by RoundEye; 05-29-09 at 08:57 PM.
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  14. #14
    Disciple of Doom SeedOfChaos's Avatar
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    Quote Originally Posted by RoundEye View Post
    unless itís frozen up somehow
    ...which I gather from his description of the cart moving as soon as the starter turns over. How do you explain that with a clogged air/gas inlet?

    For all that I know, the starter engine turning the engine over should not be enough to engage a torque converter.

    Then again, my knowledge comes from cars weighing >1.5 metric tons and accordingly powerful engines and transmissions, not go-karts. Bikes fit the weight range more closely, I guess.
    ex-WoW-addict

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    R.I.P. 2018-07-16 RoundEye's Avatar
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    Quote Originally Posted by SeedOfChaos View Post
    ...which I gather from his description of the cart moving as soon as the starter turns over. How do you explain that with a clogged air/gas inlet?...
    Because when a carb stops up the idle will raise up some to keep the engine running. Usually those type engines have an old style mechanical governor. When the motor tries to die it will raise the idle, the idle raises and the clutch engages.

    I can’t see the go cart on the link provided. I’m really curious now what the problem is.
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    Certified SG Addict CableDude's Avatar
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    Quote Originally Posted by Sava700 View Post
    what? keep posting pete

  17. #17
    Ohh Hell yeah.. Sava700's Avatar
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    found this video of the torque converter and how it should run..but I'm not exactly sure mine is doing that.

    [ link ]

  18. #18
    Ohh Hell yeah.. Sava700's Avatar
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    I took the guard off it just now and watched it as I revved it up with the rear end jacked off the ground..its the only way I can do that without it taking off with me in it...its working just as it shows in that video above.

    so this brings me back to the original problem with still no solution. I've gone on both those parts and sanded off any rust I found too and lubed everything up good and seems to be working just like in that video one opens the other closes and the belt moves vs versa on both as it should. when its Idle the wheels are still moving yet if I crank down the idle anymore it won't idle it will just shut off.

  19. #19
    R.I.P. 2018-07-16 RoundEye's Avatar
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    If that clutch is opening and closing then its working fine. Thatís how you change gears, like on a 10-speed bike, the chain moves up and down for gear changes. I think youíre barking up the wrong tree thinking itís the clutch.

    I still think its in the carburetor or governor. Is there a little arm and spring type mechanism that runs from the engine to the carb? If so, check that to see if it is moving back and forth easily.
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  20. #20
    Ohh Hell yeah.. Sava700's Avatar
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    Quote Originally Posted by RoundEye View Post
    If that clutch is opening and closing then its working fine. Thatís how you change gears, like on a 10-speed bike, the chain moves up and down for gear changes. I think youíre barking up the wrong tree thinking itís the clutch.

    I still think its in the carburetor or governor. Is there a little arm and spring type mechanism that runs from the engine to the carb? If so, check that to see if it is moving back and forth easily.
    well the engine runs fine... strange cause when its idle it shouldn't be engaging that primary pulley cause when its turning its causing it to pull the belt thus moving the secondary and then moving the chain to put the cart in motion.

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