The bike runs perfectly (sorry Jlovvorn) so I'm assuming this does not represent a problem, but I am still curious why the line is not full of fluid. Does the top of the fuel level in the line correspond to some level in the carb? It seems too high for that to be the case.
Sorry if this is one of those "you gotta be kidding me" questions. Just not a carb expert. My generation is all about pulse-width and fuel pressure.

IMG_0831 by rzgkane, on Flickr