Walbro carb missing part
 

I am not sure what forum this may post in. I think the same company operates a lot of these forums, and you have to spend an hour trying to figure out how to make a post.
Anyway, I have a problem related to a chainsaw carb, but since I ended up on this RC plane site, and I also like rc planes, my question might be seen. I have a Walbro HDB 8c carb from a Craftsman chainsaw, and it is missing the high speed mixture needle. I have already found that this carb is NOT to be found anywhere, so am hoping somebody might know something about how to deal with the missing needle problem Thank you.