This is like getting a free engineering course in RC's.

One thing I failed to mention. I crashed my LT-40 and the next time I flew it the engine would cut off on take off as soon as the nose got up. Turns out the crash knocked the pickup line off inside the fuel tank (it is a Dubro tank). I fixed it but did not pay attention to the holes in the stopper when I reassembled it and as a consequence opened up the 3rd hole. Of course when I tried to crank it at the field gas came streaming out. As a quick fix one of the guys put a machine screw in the open hole and it seemed to fix the problem.

It is not leaking gas but could this be the source of my problem?