Im haveing trouble with my 1980 tomos A-3 Bullet, the engine will not idle and has no power when im on it. When it is on the kick-stand i can rev it up and get seccond gear to kick in, but the throtle it verry un-responsive and when im rideing it i have to keep the throtle all the way open and it accelerates verry slow. I tryed to run it without the exhaust pipe on it and it ran somewhat ok, I still had to keep the throtle open all the way, but i got into seccond gear and got up to 25mph. It still wouldent idle but it tryed to. Any one got any ideas or maby had the same problem?