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Old 04-09-2007, 08:59 AM
GoKartDad GoKartDad is offline
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I am building 2 go-karts for my daughters, the first one is almost done. The problem I have is that this kart barely rolls on concrete with the throttle all the way down. The throttle cable is connected correctly, if I put the rear wheels on blocks the throttle will pull wide open. I am using a 12t clutch and a 66t sprocket. The engine is a 5hp B&S from a tiller. The engine does hace to crankshafts, I am not using one of them. My first thoughts were to change the gear ratio, but then I thought I should possibly be using some type of pully system. All help is appreciated.
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Old 04-09-2007, 02:47 PM
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robertdjung robertdjung is offline
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that ratio is acceptable... sounds like maybe the engine is weak, or there's something not adjusted properly.

If your fuel/air mixture is wrong, then it won't run well.

Does the engine look like the one that's black in this page?

That engine has a high-speed adjustment for the carb that's important. Let me know if that's the one.

Otherwise, what kind of engine?
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Old 04-09-2007, 03:08 PM
GoKartDad GoKartDad is offline
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It looks exactly like that engine. Any help on the adjustment would be great.

Last edited by GoKartDad; 04-09-2007 at 03:11 PM.
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Old 04-09-2007, 06:52 PM
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I have the speed issue resolved by adjusting the carb, however I now have a loud squeal problem. I know the squeal is not coming from the clutch and it only started after I tried a straight pipe header as the exhaust-that my father thought would be a good idea. Anyway all help is appreciated.
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Old 04-09-2007, 11:10 PM
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squeal is most likely from the recoil starter. Take the side cover off, and spray a bunch of carb cleaner in and around it. If you feel ambitious, disassemble it and check for rust. NEVER use oil on the recoil, or the bearings. NO OIL NO GREASE! It will just collect dirt and gum up.
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