last week I had my bottem end redone because my left side of my case got messed up....well anyways my motor ran and ideled fine before pulling it when I got my motor back from the shop I put it back in. Anyways I went to ride it today and it starts and runs fine but it wont idle for sh*t i can run it wide open and it runs fine but when I go to let off the gas it compleatly sh*ts out any help would be apreciated I have tried ajusting the idle screw on the carb but still does the same thing...dont know?