I do believe we have a starter jet....but it is fixed and cannot be replaced (and the TEV may use the same supply for fuel).

Look at the attached photo.  The small brass tube that extends down into the float bowl has a very small hole at the bottom (the brass tube extends down from the carb body and goes into a hole in the front of the float bowl), and I believe that is where the "enrichment circuit" picks up the fuel from the float bowl.

You really should take a Savage carb apart and study it......you will develop a better understanding of how it works.