Newbie Christmas Clutch help

[ccgetz]

Hi I am new. Chris in Fla nice to meet ya all.

Santa bought my 7 year old son a go cart for christmas.

--Stats--
2 seater
5 horse craftsman engine
centrifigal clutch
live rear axle
engine and sprocket mounted in center of axle
rear disk brake
16x8x7 rear knobby tires
15x6x6 front tires

use is mainly offroad on a race track with a few table tops jumps I built for him.

users: 7 year old son 50ish pounds and my wife 120lbsish

problems:
when my wife gets on it and floors it it takes a while to get moving. I am looking for more low end response and teh ability for my son to have a blast on the racetrack I built.

I was thinking about going with a torq a verter from comet but given they are out of business now I am stuck.

so that leaves me stuck...

Any other ideas as far as a torque convertor set up (non threaded drive shoft on engine)
how about a heavy duty clutch?
how many teeth on sprocket and clutch woudl you all recommend?

Thanks a million and sorry for the thousand questions. I havn't messed with a cart since I was 13.

Chris

 

[Kaptain Krunch]

How many teeth are on the axle and clutch at the moment? it might just be geared to high.

A torque converter would be your best bet as far as acceleration and top end, and they still are available on ebay and such, but expect to pay a good amount for one.

 

[r_chez_08]

a torque converter is a good "investment". if you are looking at not spending much, try looking for used . the wanted/ for sale section here is good.
another option may be a belt tensioner, but i am not sure how affective this setup is.

 

[ccgetz]

10/60 on the clutch and sprocket

 

[freakboy]

if you bump that sprocket to a 70 or so it should add more toruqe but top end will be bad but for your son you dont need to go fast.

 

[1992suburban]

thats a BIG tire.. and probably a heavy cart

your clutch might be shot too though..

 

[KartRacer695]

try using a jack shaft or bigger sprocket on engine.

 

[bajagokart]

i would say do a 7:1 ratio to get a bit more torque

 

[Kenny_McCormic]

I would set up a jack shaft for now. When he's older swap a sled engine in it.