my primary main jet is 97 my secondary main jet is 145.
The emulsion tubes should come out easily. My carb sat for 15 years, it does not seem as good as it used to be but it works.
You gave an excellent description of it in your post, sounds too lean. It is more common for jets to clog than the much larger passages, but nothing is impossible. I have had to remove lead plugs and drill out clogged passages on Webbers
Not hard to do. Fishing line shot weights can be used to plug the access holes again.