Hi, I just signed up today. I have a Puch Magnum XK and Suzuki Fa50. Ok, My FA50 I just recently had donated to me with 3000 mi on it, starts right up and runs but when you give it gas it just sorta revs weakly but doesnt go anywhere. It doesnt sound like its reving real strong at all, and if you lift the rear wheel up and open the throttle it will spin the wheel kinda fast and rev harder but as soon as you get it back on the ground it jus goes blaaaaaa and wont move an inch, even with the throttle wide open. And I'm only 150lbs so its not that haha. I've had the tranny case apart, checked it all out and visually there is plenty of friction surface left on the clutch and hardly any wear on anything. I'm wondereing if its something with the motor not the clutch or drive train. I mean it sounds really flat and low on power. Electrical maybe? Any help at all is great.