My sons wr carb slide stuck in about 1/3 open position. I took the top of the carb off and did'nt see anything odd. I could'nt move the slide it was like it was jammed in place so I took a small screwdriver and barely pryed between the front of the slide and the carb wall and it came loose. I worked the throttle a few times and it felt fine. If anyone has any answers for me on this problem that would be great.