Here is something you probably dont hear often. How slow it down

Jport

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Im a complete newbie with karts. I'm in the process of getting a yerfdog gx150 spiderbox up and running. It runs but not well. Even at that it is a little faster than I want right now for my 10 year old to drive around our few acre yard. Is there some way to slow it down to about 10mph for a while at least until she's more experienced? It would be nice if it could change the speed easily so my 20 year old nephew could go faster. Is there some kind of governor?
 

Functional Artist

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Howdy & :welcome2:

There are a few different ways to lower the top speed of a kart ;)
...a block of wood under the accelerator pedal
...or adjustable throttle "stop" on the carb linkage etc.

Could you post a pic of your kart? :auto:

Do you know if it has a clutch or torque convertor?
...which is an Important detail, when contemplating how to slow a kart down :cheers2:
 

panchothedog

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Limiting travel of the accelerator pedal might be one of the easiest ways. Especially if you want to change it periodically. One of my karts has a jamb
bolt that's adjustable under the pedal. It came like that, but would be easy to adapt to a existing kart with a small tab welded in place.
 

Functional Artist

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Limiting travel of the accelerator pedal might be one of the easiest ways. Especially if you want to change it periodically. One of my karts has a jamb
bolt that's adjustable under the pedal. It came like that, but would be easy to adapt to a existing kart with a small tab welded in place.
We need to know if his kart has a clutch or TC

The OP probably doesn't know (like me & you) that a pedal travel limit, on a kart with a clutch, is a recipe for disaster (for the clutch anyways)
 

madprofessor

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a pedal travel limit, on a kart with a clutch, is a recipe for disaster (for the clutch anyways)
Very true that baby-footing the gas pedal can burn up a common centrifugal clutch. Also true that letting a 10-year old have full pedal to slam down getting up to the governed max speed can also mean slamming into a fixed object (tree, building, etc.) before reacting in time.
Whether it's a throttle stop screw where the throttle linkage attaches to the carb, or a bolt or block under the gas pedal, I believe only trial and error (with Dad driving during testing) can accurately fix that throttle travel between enough to keep the clutch from slipping, and enough not to bounce off of the kid's favorite climbing tree.
 

panchothedog

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F. A. You are absolutely right about burning up a centrifugal clutch with limited
throttle application. Not owning a kart with a centrifugal clutch makes me guilty
of not thinking about that. FWIW I think any kart aside from ones equipped with
10" tall tires designed for oval and road racing would benefit with a torque converter just to make driving around more practical.
 
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