Woman working on Go-Kart! Please Help

[JMaplesRush]

You're entirely welcome.



The usual stuff- verify good engine and CVT operation (test drive). The rest should be fairly obvious to you.

Should be ! It's obvious I didn't do my homework when my son asked for a go-kart for his birthday.

Thanks!

 

[Doc Sprocket]

FWIW- That kart that Tony linked to looks like a good deal. Pricing varies regionally, but it's a good buy from where I stand.

 

[Doc Sprocket]

Should be ! It's obvious I didn't do my homework when my son asked for a go-kart for his birthday.

Thanks!

Hey- who could possibly fault you? He wanted a kart, you got him one. Makes you a top-drawer mom in my book!

As for homework, we can't possibly expect anyone not in the know, to be able to figure these things out ahead of time.

 

[DaiSan76]

For what it's worth, I had a similar kart, and converted it to a live axle (also added suspension, but that isn't relevant here) and got good off road performance with a 12:1 ratio and a centrifugal clutch with 15 inch tires. I have since switched to a CVT, 18 inch tires, and a 6:1 ratio. If you want to see the build thread to give you an idea of what a live axle change would involve, you can check it out.

Original conversion to live axle:
http://www.diygokarts.com/vb/showthread.php?t=12557

Adding suspension:
http://www.diygokarts.com/vb/showthread.php?t=19633

 

[OzFab]

You're awesome!

So I'm told

BTW: Guys, am I seeing things or is that yet another AmEx frame?

 

[landuse]

If it were my kart, I would probably first try and change out the axle sprocket for a 80T one. It should not be too hard to do. Just make sure that you buy the same pitch sprocket as the one that you have on your clutch. With a 8:1 gear ratio I personally think you should be OK.

To find out what the diameter of the sprocket would be, you could have a look at these charts depending on the chain pitch you have

Azusa #35,#40 sprocket diameters
http://www.azusaeng.com/Sprockets/AzSDno35.pdf
http://www.azusaeng.com/Sprockets/AzSDno40.pdf

 

[JMaplesRush]

Chain Pitch

How do I determine what the pitch of my clutch sprocket?

 

[DaiSan76]

How do I determine what the pitch of my clutch sprocket?

Measure as shown in this picture.

 

[jandj]

If you keep the one you have, add a chain guard. In fact, if you sell it - add a chain guard. For the little cost you are protected against "My daughter got her hair caught in the chain of the go kart you sold me and was hurt. My Attorney will be in touch". Likely to happen? No, but the small cost of adding a chain guard is worth it.

 

[JMaplesRush]

chain guard

The chain guard is only off because I was figuring out the gear ratio.

 

[jandj]

Good! You'd be suprised how many guardless karts are out there.