Thanks joew for the advice. I have since completely stripped the carb, jet, emulsion tube, any screw I could find. I put a wire through everything and soaked it in carb cleaner. Still nothing, not even a pop. Only when I put in starter fluid did it rev up for a second, but soon died again. I dont know what to say.
Im thinking of just buying a new carb. What aftermarket carbs can you suggest? What other mopeds have carbs that will fit my PA50.
Thanks anyway guys.