Swapped an e50 with a new 50cc kit on my maxi to replace the za50. Runs great on the stand and starts up with no problem, but SO SLOW and no power at all. With one hand I can hold the thing back all the way revved up. So I have 3 scenarios:
1) Stock pipe (deresticted) with 14mm bing and 54 jet. This starts and revs just fine but even with pedaling it won't pull me at all.
2) Techno boss and 14mm bing with #60 jet. Have to help it to get moving, but will get me up to about 20mph. Holy crap is boss the loud.
3) Stock pipe with the 60jet. Same problem as the 54 jet. No power at all.
Yes I've played with all the needle positions and tested, changed the tranny fluid (only up to the screw) and went with and without the airbox. I changed the front sprocket to a 14T so i'm running that in the front and 40T in the back. Been at this for 2 days, and even with the boss pipe it's pathetic I have to pedal up to 10mph for the thing to start pulling on it's own.
Any help would be greatly appreciated.