I have an atc 200s 1985 and did a carb rebuild. I got it running and the gas still pours out of the bottom of the bowl. I put a new float valve in it and it still doesn't help. after a while of running it, it floods out and dies.

 

hey there, did you check to see that nothing was sticking and holding the float open

 

Does it have the plastic float stop or a metal one?