Homemade Go Kart

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Intro: Homemade Go Kart

Me and a friend got tired of being bored and we don't have money to go out so we decided to build a go kart from scratch using materials we found around the shop. We custom built every single part on this go kart, from the steering to the brakes. This project took 3 days and at a total cost of $0.

Step 1: Materials

What you will need:
Square/Round tubing for frame and support
Seat
Steering wheel
Flat stock
Round rod
Assorted bolts

Step 2: The Frame

We built the frame out of 1" square tubing that has been sitting next to the house for years. We started by researching racing kart frames and came up with a design. 

Step 3: The Spindles

To build the spindles you take a piece of 1" flat stock that is 7" long and bend it so you have 2"-3"-2" U shape. Make two of these. Once they are bent, drill a hole the size of the bolt you are using in the top and bottom. Now cut a piece of round tube that is a little bit smaller than the inside height of the spindle. This piece needs to be a snug fit to the bolt your using so the tube will turn freely around the bolt but not so tight that its difficult to rotate. Now for the part that actually rotates, I used 1/2" square tube to make this part. Weld a bolt that is long enough and wide enough to go on the wheels you are using onto the piece of tube that the bolt goes through. At a 90 degree angle to this piece weld another piece of tube that the steering components will attach to.

Step 4: Steering Shaft

The steering shaft is a piece of 1/2" hollow round tube. The length is determined by where you want the steering wheel. we made our shaft about 18" long which is perfect for use cause were both skinny. You will need two industrial washers to hold the shaft in place so the wheels will actually turn instead of the shaft. 

Step 5: Steering

We made the steering components out of a solid piece of round stock. We welded the round stock to some tie rod ends and then to a industrial washer. The tie rod end is bolted to a bolt that we welded to the square stock on the spindle. Now you need to make a steering knuckle that the steering shaft welds to. We took a 4" section of 1" square tube and welded two big bolts to opposite sides of the tube and those bolts sit inside the washers that are welded onto the round stock.

Step 6: Front Wheels

We used wheels from old mini bikes for the front and back. Its as simple as sliding the wheel on and bolting it down.

Step 7: Rear Wheels

The axle for the rear wheels is made from the axles from the mini bikes we had. We measured the distance we needed for the wheels and sprockets to clear and cut them. Weld the axle onto the side of the frame. 

Step 8: Engine

We used an old 3HP tiller engine to mount on our homemade go kart. We used the original engine mount and welded it to the frame.

Step 9: The Seat and Controls

We used an old seat we found on the side of the house. We cut the legs off and welded it to the frame. We used the brakes from the mini bikes and made a hand brake on the side. For the gas pedal we used the brake lever from one of the mini bikes and welded a support on the front bumper. The brakes are operated by another brake lever from one of the mini bikes and we welded it to a support bar on the side by the seat. 

Step 10: Final Product

After building this go kart there are some things that I would have different if I had the material. I would have made the rear axle solid all the way across so it would be stronger. I would have designed the pedal location better, we didn't think about pedals when doing the steering components. Future upgrades include a bigger engine with a clutch and maybe a transmission so we can shift it. I turned out pretty good for being hand built from whatever we could find. We tested it by jumping on it and dropping it and it seems pretty strong. After everything was completed I painted it all black.

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    71 Discussions

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    ledmusic

    Tip 15 days ago

    try adding a centrifugal clutch that way you way you wont need to turn it off at every stop ^^

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    balasahebc

    Question 7 months ago

    Any innovative ideas for go-kart using Petrol Engine

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    Dino Lover 1102

    1 year ago

    I've been wanting something like this for a few years but my dad said I can't have one until I have the money, materials, a design, and a license to drive it to school with it having headlights and tail lights

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    Igotmybukkit

    2 years ago

    Ahem, it is not free because of the fact that I do not have a welder. Besides that, this thing is great!

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    AleemA1

    2 years ago

    how did you find what kind of chain the mini bike wheel nmeeded. 35 chsin, 41 chain?

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    VincentN20

    2 years ago

    hi I was wondering if maybe you can give me the measurements? I need those for my school project ?

    1 reply
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    D_n_sh

    2 years ago

    I just wanna know that where to get steering wheel

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    EthanD10

    2 years ago

    Anybody have the measurements???

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    Andresbatman2003

    3 years ago

    I do want to put the gas pedal on the steering wheel

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    Andresbatman2003

    3 years ago

    Nice go kart and can you give me the measurements so I can try to build one cause they are awesome and beast

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    Rares I

    3 years ago on Introduction

    i want to put the gas pedal on the steering wheel.

    It's that possible?

    (I want to make it off-road)