Hi, this is my first post on this site, or first forum post on anything ever :P, I bought this chinese go kart on craigslist. it has a CF250 engine that wont spark. I just hit a bump and then the engine just quit. It sounded alot like hitting the kill switch, the way that it died, but it seems to be hooked up fine. I've replaced almost every electrical part. It might just be the crappy chinese wiring but Im not sure. i've paid $400 for someone to rewire it and it still wont spark. They dont sell this go kart online, i cant find a single pic of it on any site so there isnt just a way to order parts. the engine is a scooter engine so i just order them from a chinese scooter site. Any ideas will be greatly appreciated! this looks a bit like it but it is a little different:

 

Are you able to take pictures of the engine and wiring and post them on here? I would start by testing the ignition coil and the cdi. Could just be a bad spark plug wire.

 

First change your spark plug wire end. I had a atv do the same. Surged out the brass insert had come loose. $5 part
When they rewired it how did they do it replace the harness or just go though and fixed what looked bad? These imports use a cold solder joint prone to fale. Go through the whole harness and cut these out and solder and shrink wrap them all. When I did mine I found the tape was the only thing holding the joint togeather

 

Like I said, I've replaced just about every electrical part (cdi, and 3 different spark plug wires, plus just about everything else) the only thing I haven't replaced is the stator and I've ordered it. I've put around $1000 just trying to repair it but I just can't find what's wrong with it. Everything is hooked up right, it doesn't make any sense.

 

that's a nice looking cart! ok, although we can help you out, it'd be better if you contacted this forum, BuggyNews Buggy Forum • Portal
these guys in this buggy forum are very well wise to this kind of ORV. like i said, we can help you out, but when i had problems with my go kart, i went to buggy news' forum.

 

did you pull the kill switch wire out of the cdi? If not Google your cdi and pull that one and see if it sparks. It definitely sounds like something got bounced out of place. its just a matter of finding out what. had one where the kill went bad doing the same thing. Did not realize it until i was playing with the switch and was not hearing it click every time.