noobee - AMS Promo kart, stalls under braking

[horneth145]

Hi,

I just bought a used Action Motorsports promo kart (indy style). It has a 3.5hp briggs and stratton with a toothed belt drive and seems to need the wheel to turn otherwise it stalls. I can only start it with the wheel off the ground and once driving, if the brakes are engaged it stalls. I'm thinking the clutch would be the culprit, but I can't seem to find any clutches with toothed belt drive like the one on it.

Any ideas how I can get this running right? Am I on the right track thinking the clutch would cause this behavior? Any idea where I can find one or how I can further identify it?
Thanks!

 

[1992suburban]

sounds lik ethe clutch is stuck (engaged)

service it or replace ppics would be helpful \\

 

[horneth145]

sounds lik ethe clutch is stuck (engaged)

service it or replace ppics would be helpful \\

Thanks, here's a pic... Any info on how to service a clutch like this?

Thanks again!

 

[1992suburban]

quite possibly a MAX TORQUE cog style...

remove clutch, grease the bronze/brass bushing. and thoroughly clean the springs and shoes, sand the drum and shoes down (free from rust buildup)

 

[1992suburban]

wow... unable to locate a replacement clutch for a cogstyle setup

ANDERKART is great at these things.. when he sees the pic he will find a replacement

 

[horneth145]

Yeah, that's the trouble, I think. I've been searching online and coming up with nothing! Hopefully he'll have an idea. I'll try servicing it, can't do it today, but I should be able to get it done tomorrow.

wow... unable to locate a replacement clutch for a cogstyle setup

ANDERKART is great at these things.. when he sees the pic he will find a replacement

 

[Kenny_McCormic]

Can you rotate the wheel with the engine off? 1 of two things is wrong.

1. Poorly lubricated freewheel bushing
2. Clutch overheated and needs new spring(s)

 

[horneth145]

If I rotate the wheel with the engine off, the engine also moves. I'm going to pull the clutch later today and see what's going on.
Thanks Guys!
Brian

Can you rotate the wheel with the engine off? 1 of two things is wrong.

1. Poorly lubricated freewheel bushing
2. Clutch overheated and needs new spring(s)

 

[freakboy]

the clutch looks like one they use on comercial rental karts...

 

[horneth145]

I took it off today and cleaned it up, sanded the drum and shoes, and lubed the bushing and it's working now! Thanks guys! Sorry to be such a novice at this, but now I know!

 

[1992suburban]

I took it off today and cleaned it up, sanded the drum and shoes, and lubed the bushing and it's working now! Thanks guys! Sorry to be such a novice at this, but now I know!

a blind squirrel finds a nut once in a while.. Glad I could help