[tarzan]

I had to drill one out this summer on a friends bike.I drilled through the needle screw then tried an easy-out,but the easy-out expanded the brass out into the aluminum threads.So I had to drill it out to the minor diameter of the threads.I did this on a manual mill.A hand drill wouldnt keep it straight enough.
Once I was out as far as I could drill it,I dug the brass out of the threads with a dental pick.It was very tedious and the threads arent perfect now but it was good enough to fit the new needle.It is a good idea to get a replacement needle first so you know how much you can drill it out.Just measure the samll diameter of the thread then drill.Good luck.