Owww! My head hurts!
Never saw that before.
Extra complexity: all 3 have chokes, which may also be fast idle when active.
Very nice secondary throttle stops.
Not sure if I like the clamps to the lever arms, this needs brain surgery to assemble the first time and disaster if they loosen.
I can't figure out the primary to secondary bell crank - is it supposed to have progressive action (open at a faster rate as the linkage moves)?