Assuming you're running a 3200 governor-spring that hasn't been trimmed, place the throttle-lever on the shaft such the the slot on the end of the shaft is in line with the center line of the group on the throttle-lever.
-->> Have the main fuel-screw well backed out. I mean backed WAY out. Like you can almost see the O-ring on the fuel-screw backed out.
With the throttle-linkage connected as it should be, etc (as a initial starting point). Try starting it. It shouldn't if the main fuel-screw is well backed out.
Turn in the fuel-screw one full turn and try starting it. Continue as such using one turn increments of the fuel-screw.
If everything is close to being right, advancing the fuel-screw as such should have you eventually get to the point the engine comes up to idle.
That'll get you well in the general ball-park as it were. From that point, you'll need to work out getting maximum fueling while staying within the confines of the throttle-linkage assembly including adjustments.