In article , "Noon-Air"
wrote:

take it to your favorite local small engine shop.... have them show you what
and how to do a proper tune up on it, then pay the man.

Noon-

I was hoping to find someone who was more familiar with carburetors than I
am, that may have run into an adjustment like this one.

I've already "paid the man" for a brand-new unit. It isn't quite like I
had a bag of parts and wanted instructions on how to put it back together!

Fred