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Old 04-07-2020, 10:41 PM
Thuber10 Thuber10 is offline
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Default How to make a go kart with a torque converter idle without moving?

I have a Yerf Dog go kart (Don't know the model) but I have been having problems when it idles the torque converter grabs and it wants to take off on the track on me. Please help. I'm very new to this and can show pictures if needed.
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Old 04-08-2020, 01:01 AM
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I have a Yerf Dog go kart (Don't know the model) but I have been having problems when it idles the torque converter grabs and it wants to take off on the track on me. Please help. I'm very new to this and can show pictures if needed.
Welcome. It could be that the TC just needs a good servicing. Post some pics so that we can see what you are working with. Have you got the brass bushing that the TC belt rides on?
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Old 04-08-2020, 08:13 AM
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Could be a number of things... aside from what Landuse mentioned it could be a high idle, pulleys out of alignment, springs in driver clutch worn/streched, wrong belt ect. A picture from above (strait down) that will show the pulleys and belt number would be useful. Is the kart new to you or is this a problem that showed up out of the blue?
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Old 04-08-2020, 10:22 AM
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Given that this isn't a new build, and assuming that it did work at one point...

Verify the correct belt
Verify the alignment and spacing
Verify the engine idle speed. If it's idling too fast, it will start to engage the clutch
Inspect and clean the primary clutch. If it's sticking it won't disengage fully. If it's got surface rust, that will increase the friction and make it want to move. The cones and shaft should be nice and polished.

If none of that works, remove the primary clutch and disassemble it. Clean everything thoroughly and lubricate with a dry type lube. You might discover a broken or stretched out spring, or something else out of place.

It is worth noting that primary clutches that do not have a bronze bushing around the shaft will often tend to want to creep a bit due to friction between the shaft and belt at idle.
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Old 04-10-2020, 06:19 PM
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Default Engine

You guys don't need to worry about it now. My engine threw a rod.
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Old 04-10-2020, 06:46 PM
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Bummer
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Old 04-10-2020, 07:07 PM
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Crikey....
What do you figure had happened??... or tell us what lead up to the destruction...
Post some pics of the motor and setup....
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Old 04-11-2020, 02:37 AM
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You guys don't need to worry about it now. My engine threw a rod.
How did that happen?
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Old 04-13-2020, 10:54 PM
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How did that happen?
It was a pretty old engine and i thought it had more life but one day I was doing a top speed run and my engine stopped and i thought i was out of fuel but then i heard metal hit the ground and the crank case exploded and pieces of my rod were everywhere. My dad even said to me "If you push it to hard it might fall apart on you." and he was right. I'm getting a predator 212 today so its all good.
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Old 04-14-2020, 02:17 AM
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Quote:
Originally Posted by Thuber10 View Post
It was a pretty old engine and i thought it had more life but one day I was doing a top speed run and my engine stopped and i thought i was out of fuel but then i heard metal hit the ground and the crank case exploded and pieces of my rod were everywhere. My dad even said to me "If you push it to hard it might fall apart on you." and he was right. I'm getting a predator 212 today so its all good.
Pictures of the carnage?
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Old 04-14-2020, 07:34 AM
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Let me guess, you took the governor off a Tecumseh?
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Old 04-14-2020, 09:30 AM
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Old 04-14-2020, 06:29 PM
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Let me guess, you took the governor off a Tecumseh?
No I didn't take it off.
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Old 04-14-2020, 07:07 PM
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No I didn't take it off.
Wow, that engine must have had a rough life.
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Old 04-14-2020, 07:53 PM
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Sounds like it's working out in your favor!
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