Let's figure out this choke issue...

That's easy enough to adjust with a little bending here and there. I need to know if the initial cold start-up requires the choke plate to be 100% closed, or should it have a pre-set gap. In other words, with the plate completely closed, the only air getting in to mix with the initial shot of fuel is that which can enter through a small round hole in the choke plate. Doesn't seem like enough.

I can play with various combinations, but I was hoping someone could tell me how theirs is set up.