Ouch. I went to Parks for AvSvcience, then went to work for Garrett for about 6 years and accumulated the necessary time for the FAA signoff. Then I went to Browns' in Okla City for the test prep, test and o's and p's. It's not that I can't understand, I just don't study the particular subject in any great detail when there are so many others willing to share what they know about the subject.

Anyhow, I tried the lever at level to the carb body, just below, and just above, earlier today. I did notice that the needle didn't seem to move much, if at all while pressing down on the lever against the spring pressure when it was at level and above. Perhaps I didn't get all the gunk out.

Good luck on the testing, I hope all goes well. Nice looking test bed, too.