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I have a 7 HP Duromax engine with electric start. I've replaced exhaust, air filter, and jetted carb, but after riding the go-kart for a bit (30 minutes or so) the engine will shut off. After it sits for a few seconds to a minute it will fire back up and run for another few minutes and then do...

I just bought my kids a used Grave Digger power wheel with the metal frame and suspension. We bought it as a project to possibly turn into a gas powered kart, but for now I think we are going to stick with electric. We plan to change the wheels to real wheels and tires (probably from a golf...

I have a Predator 212 with an air filter and header. Everything else is stock. The air filter kit came with a .038 jet, but it seems rich based on the plug and it backfiring through the exhaust. I plan to use the kart for off road driving mostly. Should I stick with the stock jet or go down to a...

I have a non-hemi Predator 212 and a Duromax 7hp. I am installing a new air cleaner, jet, and exhaust, and am wanting to adjust the timing. What keys have you used that work well?

I recently purchased a racing go-kart at an online auction. The go-kart had been converted to electric, but I am putting it back to gas. I am curious how I am supposed to attach the throttle cable. It has a threaded rod that runs down the frame and connects to the pedal, and I have a yoke that...

I recently purchased a used racing go-kart. One of the tires had a small sliver of metal in it and is leaking air. The tires are Burris racing slicks size 10 x 5.6-5. This seems to be an oddball size as I have not had any luck finding a replacement. Does anyone know if another tire size will fit...

Does anyone know if the Predator 212cc upgrade parts will fit the Duromax 7HP engine? I'm not looking to get crazy, just exhaust, air, fuel...the basics.

I have a go-kart for my son (ok, for me) that has a stock Predator 212 on it currently.It runs fine, but is starting to sweat some horsepower on the concrete when it is parked. I am thinking of changing the engine, and going with electric start, and am considering either a 7hp Duromax or the...

I have a 30 series TC on a Yerf Dog kart that I am working on. I have replaced the driven unit with a new Comet unit, and have removed the driver clutch (also Comet) and cleaned it. When I ran the engine last night it sounded like the TC was clicking. Any idea what could cause this?

I just converted a Honda GX160 to electric start. Now I need a battery. I have been seeing SLA batteries stating they are for use on pressure washers, etc. with electric start. Are these batteries ok to use for a go-kart, or should I get an actual lawnmower battery?

I am looking for an exhaust for a 79cc predator. Does anyone know if the 212 flange is the same as the 79cc?

Does anyone know where to get 1" axle bearings that are for racing? I'm looking for some low friction bearings that are made like this

Does anyone know of an adapter that would mount a 1.25" bearing and cassette to a 1" flange?

I have a torque converter for a 1" shaft, but the driver pulley did not come with a bronze bushing. Is this necessary? If so, where can I find one?

My engineering students are building a mini-chopper and as I was browsing e-bay for parts I came across an electric turbo. Has anyone used one of these? I am assuming they only turn on at WOT. I also assume that you would have to increase fuel otherwise the mixture would lean out and would run...

Has anyone used a torque converter for their electric project? If so, how do you change the driven springs to lower the engagement RPM?

What would be the benefit of a jackshaft on an electric go-kart? We have a ME0909 motor running at 24 volts (limited by race rules). We currently have a 3:1 ratio. Would a jackshaft help us go faster while working the motor less? Example: Would a Jackshaft ratio of 2:1 be better than a...

Can a car stereo capacitor be used as a type of "NOS" for a DC motor? I'd like to have a capacitor wired to a momentary bump switch that could give our go-kart a boost when pressed. Is this feasible? What other ideas might work better?

My students are involved in a solar go-kart race. The race is comprised of a speed portion (8 laps) and an endurance portion (24 laps). We want to go fast, obviously, but would also like some efficiency as well. We have a Mont-energy me0909 motor running at 24 volts, geared 3:1 and an Alltrax SR...

We are working on a solar go-kart, and I have asked my students to find the necessary force to overcome the friction of the tire on the road. We have done the calculations, but in our calculation we used the total (estimated) weight of the cart for our force of resistance. We have converted...