RE: Tornado BB
You should do this to reset the carb, if you look down the barrel when the throttle is at full brake position you can see a small gap in the carb barrel if not then you need to turn the idle screw either Clock wise or Counter Clock wise till you have approximatlly a 1 mm gap. Once you have that set go to the low idle screw and be sure that it is set flush with outside edge. Next turn the High idle screw down Clock wise very very carefully till you feel it touch bottom it very important that you don't force it, you will break the needle tip or gouge it, then it will be junk, just be very very careful and feel for the touch down, now back it out counter clock wise 2 1/2 turns and you will have your carb reset to a good begining point to where the engine should start and run right there.