Hello from WV!

Crusher0032

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My son and I recently bought an old basket case of what turned out to be a Carter Brothers 1435 to fix up. Picture below is from the ad: Screenshot_20241115_224831_Facebook.jpg

It came with a GX160 that had several stripped bolt holes and missing parts so for now at least, it's boxed up and set off to the side for a future rebuild with a few mild performance parts. I'm trying to find a used predator 212 for now or waiting until Harbor freight has them on sale again.

Finding parts for this cart is turning out to be a little tough with the odd jackshaft setup but we've managed to order some parts from Go Power Sports that should be in soon.

For now, we're going with a torque converter setup with a 7" driven clutch on one end of the jackshaft and a 12 tooth sprocket (it came with the two sprockets) on the other end.

The cart came with number 40 chain going from the jackshaft 12 tooth sprocket into a 48 tooth sprocket. I've looked at several calculators but haven't figured out how to calculate gearing to include the torque converter setup so we'll have to put it together and see how it runs, but any would be very helpful here. The jackshaft is 3/4", so the smallest sprocket I can find to fit is a 10 tooth.

We have disassembled the cart and working on cleaning the rust up and getting it ready for paint now. Here's where it sits currently:

17328955135537606377052196698413.jpg17328955446801552667749754269861.jpg
We're looking forward to learning and hopefully contributing to forum as we learn, thanks for having us!
 

G.W

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Howdy neighbor! I'm out in the woods but not far from Huntington.
Yeah, I live in the woods too, but my go kart is a little incapable out here. My fourwheelers get alot more use. The go kart is probably gonna find a new home soon since I just bought another project car
 

panchothedog

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Welcome to the forum. That is a great project for you and your son to work on. If you are driving a 40 tooth sprocket with a 12, the gearing is going to be way too tall. I can't read the size of your tires in the picture you posted, but I am guessing that they are about 16" tall. With a torque converter and a 196 to 224cc engine,
a drive sprocket of 10 teeth turning a 60 axle sprocket is a tried and true combination for 18 to 20 inch rear tires. This will give you strong acceleration and hill climbing ability, as well as good top speed. A 40 tooth on the axle with 12 driving it gives you a 3.3 to 1 ratio. A long ways off of the 6 to 1 ratio that is a proven winner. Not trying to be critical. Trying to save you some frustration and disappointment for when it's time for your maiden voyage.
 

panchothedog

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The drive ratios will be the same wether its a 20 or 30 series. I also miss read your post about sprocket size. A 48 tooth with a 10 tooth driver will give you a
4.8 to 1 ratio. Rear tire height will be a determining factor.
 

Crusher0032

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Thanks all for the welcome and the advice! The tires are right at 14" tall. I wanted to stay with the 20 series but couldn't stomach the prices between them and the 30 right now, if what we have doesn't work out we'll have adjust as funds allow.

Not sure if this works here, but @panchothedog , I found a 60 tooth axle sprocket and can throw the 10 tooth jackshaft sprocket on there. I wasn't sure if I changed both sprockets if it would be too low. I wouldn't mind going to a little bigger rear tire eventually but my son has to earn the money for it first. Our deal was I buy the original kart & help get it moving under its own power, but he buys upgrade parts. Thanks again everyone!
 

panchothedog

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With only 14" tires you can probably get by with a 10 X 48 configuration. Did the kart have a belt driven clutch on the jack shaft when you purchased it? The reason I ask is because if it did, and it is a 20 series, it is not compatible with a 30 series driver. If you bought the complete kit ( driver, driven, back plate, belt, and sprockets ) then you are good to go. What size are your rims? If they are 6" then the biggest tire you can find is going to be 15 or 16 inches.
 

Crusher0032

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With only 14" tires you can probably get by with a 10 X 48 configuration. Did the kart have a belt driven clutch on the jack shaft when you purchased it? The reason I ask is because if it did, and it is a 20 series, it is not compatible with a 30 series driver. If you bought the complete kit ( driver, driven, back plate, belt, and sprockets ) then you are good to go. What size are your rims? If they are 6" then the biggest tire you can find is going to be 15 or 16 inches.
It does have 6" wheels with 145/7.00 tires but sounds like i may want to go ahead and change the 48 tooth sprocket to the 60 tooth in addition to the 10 tooth sprocket. I ordered the 30 series driver and 30 series 7" driven because the original driver clutch did not come with the kart and unfortunately the 20 series driven was rusted beyond repair. The actual faces of the driven clutch had pits that went completely through the metal. I haven't bought a belt yet because I'm not sure what the final measurements will be.
From what I could tell, the parts diagram for this kart didn't show a backplate, but I attached it below in case I'm reading it wrong, which is 100% possible. It seems to me like you slide the engine and the jackshaft to adjust belt and chain tension. I put a picture of it below too. It's a weird setup but seems factory for what I can tell.
20241130_111910.jpg
Thank you all again for helping the new guy!
 

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panchothedog

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You will be fine with the driver and driven that you ordered. Just make sure that you orientate them the same way. One side is flat, and the other side is on an angle. Once you have everything assembled, then measure the distance between the two clutch centers. Go Power Sports has a good chart on their website to determine the correct belt. If you haven't already ordered the 60 tooth you should at least try the 48 X 10. As I stated earlier the 60 X 10 works great with 18 to 20 inch tires. At only 14" tall your gear ratio works out to be about 25 % lower than the taller tires. Also getting the 7" driven ( good move ) gives you a little lower of a starting ratio than the more common 6" driven. Save those dollars for a new predator engine. They are a good buy for the money.
 
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