I got a used set of RS 36 carbs, in cleaning them i realized one of the super small tips of the mixture screws has broken off inside the carb body. The hole is TINY, and i believe it is tapered so that the corresponding taper on the screw can fit it, so I cannot drill it out. (plus i don't have any drill bits that small). I tried pushing it out with a push pin but no luck. You can see the gleam of the brass in the hole where it broke off. Pretty pissed off right now, these were not cheap. How can i get this out without damaging the carb body?