Let's review... you know the adjustment is an allen key and you must press
down the allen key to engage the adjuster...

Counter clockwise is enrichen...  Clockwise to leaner. You may have to turn
one or two complete circle either way to get engine to start.

Trick is look at the air flap...it should be slightly below the horizontal
position with a tiny air gap... sometime after installing fuel distributor
you see the flap way above the horizontal position.

Another thing is fuel distributor must have o-ring where it sticks into the
hole when installed.

Too rich or too lean will not start.