Ihave had my MT@ for a year or two and I am just starting to use it. have reset the carb needles and all that but I just cant seem to get it to run without stalling. Most of the time its from air bubble in the fuel line. Dont know how they get there but they are ther...when I gass on it hard its almost to the point of sputtering. ann rarely the card just gets stuck when its wide open, which ofcourse is a HUGEproblem. I keep tightening the nut on the side of the carb but can anyone help me with these problems, it would be much appreciated. thanks