Re: Just finished install of 48cc Skyhawk
Major leaks of gasoline, I presume? The only place gas would be leaking from on the carb would be on the fuel intake tube and between the float bowl and carb body, if those aren't tight enough. Otherwise, it sounds like you have a float problem, bad float not lifting the needle valve closed, and fuel keeps pouring in when it shouldn't be. Then you'll get overflow into the intake path and all over the place.
I'm with city, though, see if your vendor will replace the carb. You shouldn't have to deal with that on a brand new machine.