As pointless as this may have been, I tried to theorize where the fuel should be as it relates to the jets and also where the level would be on the bowl if you could look through it.
I started with the slow jet. The highest point I imagine you would want fuel to be on the idle jet is just below the tiny passages near the top that also air to pass through to create a froth effect for the fuel. That point is noted in the first picture as the mark above the idle jet. At the lowest, you would need it to be at least covering the slotted screwdriver area at the bottom of the jet. That's a pretty wide range.
I applied the same logic to the main emulsion tube. Given the length of the tube and the amount of holes in it, I began to wonder if the fuel level is supposed to cover some of those passages. Assuming it ISN'T though, the pen mark near the lower end of the main jet passage denotes the point where the holes in the emulsion tubes start. I wouldn't imagine you'd want it much lower than that.
Looking closer at the emulsion tube, there are 5 vertical holes with another set of 2 near the middle. Just as I thought that you may want some of the covered with fuel, you probably don't want all or most of them covered either. The next pen mark up on the main jet passage denotes where the set of 2 holes starts (where they would just remain uncovered).
The last picture illustrates the minimum I level I determined form the main jet passge and the highest I think the idle jet could take as it relates to the float bowl. The upper mark is hard to see in one of the photos but it's right at the edge of the shadow.
