I have a YS 61 FR (YS0090) that I bought about 12 years ago. It doesn't have a lot of time on it, and I've always had to set the needle right on the edge of lean or it would flame out in the air. The needle is showing some wear where it seats. I have to close it almost all the way or the engine is too rich. I'm running a 12x10 APC with a CF pipe (don't remember the company), 15% Cool Power, getting 10K RPM. Power and throttle response are good.

I can't find parts on the web. Where can I order a replacement needle?