I wanted to post my recent project details on this board as I got some good information from here. I took a run down, beat up old go kart and restored it and put an electric motor on it.
The specs are:
-36 volt 1000 watt motor
-3 12v 18ah batteries
-36 volt controller
-hall effect foot pedal throttle
-12 tooth sprocket on the motor
-72 tooth sprocket on the single wheel drive (dead axle)
-10 inch OD turf tires on 5 inch rims.
-15 mph with two kids it, totals weight 130lbs.
-run time is about two hours.
I could only find electric motor assemblies with sprockets sized for scooter size chain, meanwhile the rear wheel sprocket to match do not come with the bolt pattern on standard go kart wheels. I simply used a scooter sprocket and drilled a new bolt pattern on it.
I had to fabricate a motor mount and in doing so made it adjustable rather than welding it all so that I could better align and tighten the chain. This worked well and the chain does not come off.
I have ridden in the cart myself with two kids and it starts and runs fine. I would say it can easily handle 300lbs.
I live in a flat part of the country so the kart does not encounter any hills which might impact it performance. I also have a 54 tooth sprocket that should produce higher speeds and I feel confident it would still be able to start fine. It will be awhile before I try it as 15 is a good speed.
I built the kart because my 7 year old is too big to enjoy the type of electric ride ons available. I did not want to use a gas kart because I live in a neighborhood and did not want the noise and exhaust annoying my neighbors.
The kart has plenty of room and could easily handle the additional weight of larger batteries giving the kart several hours of run time. I also have a battery meter, horn and key switch that I have not installed yet. The neighborhood kids take turns it, three at a time aged 3-7.
Total cost including all parts, donor kart, paint, etc was about $600. I ended up having to rebuild a lot of the kart, floor, wheels, tires, seat. If the donor kart had these item in re-usable condition it would have saved almost $200.
Steve
The specs are:
-36 volt 1000 watt motor
-3 12v 18ah batteries
-36 volt controller
-hall effect foot pedal throttle
-12 tooth sprocket on the motor
-72 tooth sprocket on the single wheel drive (dead axle)
-10 inch OD turf tires on 5 inch rims.
-15 mph with two kids it, totals weight 130lbs.
-run time is about two hours.
I could only find electric motor assemblies with sprockets sized for scooter size chain, meanwhile the rear wheel sprocket to match do not come with the bolt pattern on standard go kart wheels. I simply used a scooter sprocket and drilled a new bolt pattern on it.
I had to fabricate a motor mount and in doing so made it adjustable rather than welding it all so that I could better align and tighten the chain. This worked well and the chain does not come off.
I have ridden in the cart myself with two kids and it starts and runs fine. I would say it can easily handle 300lbs.
I live in a flat part of the country so the kart does not encounter any hills which might impact it performance. I also have a 54 tooth sprocket that should produce higher speeds and I feel confident it would still be able to start fine. It will be awhile before I try it as 15 is a good speed.
I built the kart because my 7 year old is too big to enjoy the type of electric ride ons available. I did not want to use a gas kart because I live in a neighborhood and did not want the noise and exhaust annoying my neighbors.
The kart has plenty of room and could easily handle the additional weight of larger batteries giving the kart several hours of run time. I also have a battery meter, horn and key switch that I have not installed yet. The neighborhood kids take turns it, three at a time aged 3-7.
Total cost including all parts, donor kart, paint, etc was about $600. I ended up having to rebuild a lot of the kart, floor, wheels, tires, seat. If the donor kart had these item in re-usable condition it would have saved almost $200.
Steve
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