I found the cdi box was loose hanging right on the motor and was really hot. So i replaced that thinking maybe that was cause the intermittent problem, and mounted it on the seat frame rail as far from the engine as possible to keep if from possibly frying, and found the wires connecting to the ignition coil were a little loose so I crimped them tighter and took the carb apart to check it and the main jet was a 108, does that sound healthy for a stock scooter ran primarily in 80-110 degree weather? I put everything back together and it seems to be running better then ever! It does an indicated 58mph but thats china speed. Does that sound normal for a 150cc with 240 miles on it