Re: what did you do to your motorized bicycle today?
I've found that these carbs will work without pulse line relying just on head pressure from the tank, but much better to have it though.
By putting a good dob of grease to catch swath on the inside of the transfer ramp the pulse pick up could be drilled with out splitting the cases.
But pulse pick up can be taken from inlet manifold also but would not be as strong.
Also may need a return fuel line from carb to tank?
These type carbs are generally probably better suited to WOT style riding, I have only yet played with the $15 barrel carb, and like it.