IIRC, (and I may be thinking about a different carb) but that little hole on the black plastic that holds the air filter, down in there, there's a big hole for the air. And another smaller hole. Isn't fuel supposed to come out of the smaller hole, when it's running? I'm not sure how or why, since the fuel line lead directly into the side of the carb itself. Because there's no fuel at all coming out of it.
Or am I thinking about a different carb?