Okay, I should have included more information... I have the basic Royal Star from 1996, I do not have the Venturer and my airboxes look nothing like that...
Here's a picture of mine...
http://www.pbase.com/image/136029271/original.jpg
Where exactly is the overflow? I had an issue this weekend where the gas would dump out on both sides of the crank case but I could not see any place it was leaking.
Anyway, if it is a stuck float, what is the fix?