Gx240 clutch

[Rocket99]

Hi I have a gx240 engine with 6:1 reduction gear.
I want to put it in a go kart what is the easiest way to but a centrifugal clutch on the engine?
Thanks.

 

[Kartorbust]

You won't get anywhere fast with that reduction. Usually the 2:1 gear reduction uses a wet clutch, which is in an oil bath to keep it cool. With those you don't need a centrifugal clutch, because it's already in there. 6:1 I'm not sure if that has a wet clutch or not.

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[Rocket99]

Maybe it is not a 6:1 because I put it in direct drive without a clutch and it was pretty quick. It has some sort of reduction box on it.

 

[mckutzy]

Post some pics of the motor in question.....

 

[Rocket99]

Are these Ok?

 

[mckutzy]

Your pics are way zoomed in......

Back away to see the whole of the motor and what is attached to...

Off hand... you definatly need a new sprocket... Looking way too thin on the teeth...

 

[Rocket99]

Here is some more pictures.
Anyone know what the lever on the top of motor Is?
Circled in blue.
Thanks

 

[bob58o]

Not sure what is circled in Blue. Maybe part of the governor arm / throttle linkage.

 

[Rocket99]

The leaver goes down into the crankshaft somewhere

 

[bob58o]

The leaver goes down into the crankshaft somewhere

Into the "CRANKCASE"? Probably the governor arm.
https://www.youtube.com/watch?v=8T5vVXKEXgY

 

[Rocket99]

That it thanks

---------- Post added at 11:27 PM ---------- Previous post was at 11:22 PM ----------

Any ideas how to put a centrifugal clutch on it?

 

[bob58o]

Any ideas how to put a centrifugal clutch on it?

Not really. Sorry.

Maybe try to sell the Honda and get a new clone without the reduction.

 

[ezcome-ezgo]

Can we back up for a sec... So as it is right now, when you start the engine, what happens? Does the kart just go, or does it accelerate in response to applying throttle?

 

[Rocket99]

Right now have to push start it. If I lift the back wheels off the ground I can pull start it. When running the wheel continually turn so only way to stop it is to turn the engine off. It goes pretty quick though does about 60kph.
Thanks

 

[bob58o]

How tall are the Tyres?
How many teeth on each sprocket?
6:1 Internal Reduction with those sprockets doesn't sound right.

No Governor, so 5000 RPM?
6:1 Internal Ratio
4 or 5:1 Sprocket Ratio?
Unless the tires are 5 feet tall, I can't see that being correct and you going 60km/h at 5000 RPM.

 

[Rocket99]

Do these pictures help?
Maybe it does not have a 6:1 Maybe it's a 2:1 in not sure. It has plenty of power it just needs a clutch.
Thanks

 

[Rocket99]

Would this fit?

 

[mckutzy]

I think that's a 2:1 gear ratio redux box...
For the most part it won't be feasable to add a clutch to that motor as it won't rev up enough to engage it properly...
Secondly... That motor isn't readily convertible to a standard type of shaft as the shaft(the current)is made for that redux, and so is the side plate as a pair.

You'll need to replace a side plate and the shaft, so basically a new motor...
This has come up few times...

 

[Denny]

The only clutch I could see working on that engine would be one of those manual clutches. It would be ideal for your set up.


Denny

 

[Rocket99]

How would I set up a manual clutch?