Ok, I've finally gotten around to messing with my puch today, and I've found what could be the prob. Yet again, carb tuning seems to be the underlined issue here. With my current setup(70cc, bi-turbo, custom intake, 14mm carb w/#76 jet), these are the symptoms:
It idles ok now, and has no serious amount of smoke coming from the pipe. And when you "pin it" from a stop, it'll wind right up for about 2-4 seconds, then bogs, then eventually dies if you hold it there for longer than 8-12 sec. I belive that it could be running rich, but has anyone had these symptoms before? And if so, what was you're setup, and how did you fix it?