If I remember right, one of the shop guys at Sudco told me it was custom. I couldn't find one anywhere other than Kawasaki OEM parts, so maybe he was right? Oh well, I already bit the bullet and ordered one. $8 for shipping and handling, what a scam :) I took out a pair of calipers and I tried to find a standard Mikuni that was close. The KDX needle seems to taper off drastically. Oh well, gave me a good chance to find all the silicone on the bowl gasket and wrapped around the floats from the previous owner :) Anyways, thanks for the help.