Thats what I was thinking too. At work right now, will go home and open up the HSN carb side and clean it out with a thin wire. I will also hold it under alcohola nd blow hard into it. That should dislodge anything that is stuck. It is very unlikely that anything that is stuck is a recent problem. For the last couple of years I have been using a bubble-less clunk and an inline filter on my fuel pump but this engine was last run before that time

By the way, the needle ended up four turns out specifically because I was setting it by ear

Ameyam