ok guys i got a huge problem. i went to the track today with hope of running my truggy. But the problem is the idle screw wont keep the idle set when my throttle servo goes to brake it shuts the carb on the grp .21 sport and i adjusted the idle screw for about an hour and nothing is working. mabye some of the idle screw broke off in the carb. thanks!

can some one post a pic of what there idle screw looks like?? and does anyone know where i can get a replacement idle screw???