[CT_KAT]

Wow, that is a dirty emulsion tube. My o-rings weren't quite that bad, but they were pretty flat. I replaced them with an o-ring I had in a large metric kit I bought from Harbor Freight. A little thick, but I tightened the main jet down and it looks good.

Yeah, all the emulsion tubes need a good soak, then I'll replace with O-rings as you and Bill have suggested as well as the plugs over the pilot jets which is what this was all about in the first place, lol. Hopefully then I'll be close to done with cleaning these carbs.