My electric kart project

[Joe's kart]

Ok so I already have a motor, battery, axle, two wheels w/ tires and a brake. I plan on buying a couple of bearings for my 1" live axle in the near future. Although, a couple of problems I've run in to are:
1. My motor has a #25 chain sprocket, and I can't seem to find anywhere a #25 sprocket for a 1" live axle or even #25 sprockets that would work on a sprocket hub. Everything seems to be #35 and up.
2. I have a motor that runs when I stick both wires into an outlet type thing on the battery but, I was wondering how I could string a throttle in between the battery and motor. Would I need a throttle and controller or ... .

Sry I'm new to everything. If anybody has any suggestions or links I'd really appreciate it. Thanks.

P.S. I have a 36v 750watt motor and a 36v battery.

 

[Chuechco]

Hi Joe,
I cannot answer question number one.
But take a look at this website: http://www.evworks.com.au/tech/
The electronic part of an electric vehicle consists of batteries, a controller and a motor at minimum. The throttle is a potentiometer that you hook up to the controller.

 

[snowman86]

You can use a use a controller from a electric golfcart, as long as it is dc powered

 

[qtband]

McMaster has your sprocket. Check here:
http://www.mcmaster.com/#roller-chain-sprockets/=e9xoqv
They have #25 sprockets from 25T to 72T with a 1" bore.
Check them out for other stuff. Everything I ever got from them was very good quality.
KD