There was a link here recently to a hand drawn electrical diagram done by Myron's Moped in CA I think. I have a print out of it not that that is the point. Anyway, Myron (not the guy's name, it is something else) had a note that said something to the effect that the way the electrical system is layed out in the magneto (3 coils), there are certain cicumstances where the spark will die such as when the headlamp/taillamps are blown. I had this myself a few weeks ago - the lamps weren't blown but I had crummy connections. When I pulled the brake lever in, the moby stalled...very odd. So, now that the electrical is working (fingers crossed), it seems to be better. Took it for a 10 mile loop around our lake today and it ran ok...still a little sluggish up some steep hills but good on flats & screams down hill. Keep working on it NuBrew and you'll get it to run better. Jim.