It's a 90cc Baja I have for my kids. I purchased new plastics and long story short hooked the battery up backwards and tried to start it. Oh gosh new tires, brakes, fixed a ton of stuff and painted all the frame, had it running like a top before putting of the new plastic. And my foolish action.

 

Not good.Check for a blown fuse first off as you might have gotten lucky. If voltage went past any fuse,I'd check for burnt wires at the stator,cdi,etc. If you don't have spark possible someone can help you better in the Chinese section. Don't know if this helps,but shows cheap service manual that includes your model if needed to check out electrical problems.http://chineseatvmanuals.com/service...als-p-148.html