First of all, since this is my first post, I really appreciate you all taking the time to look at this. I'm new to bikes in general, so I'm learning as I go.
So, When I tried to start the bike shortly after I got it, it would leak gas from the drain on the leftmost carb. Eventually, the second would start draining, and then the next two. All four were just pouring gas. I removed the carb and found two of the needles were stuck, and stuff was pretty gummy. I soaked it and cleaned it all up. Everything moved freely.
The problem now is that it's still leaking from the first carb, and periodically from the second. The third and fourth are fine, now. I gently tapped it with a rubber mallet in case the float was sticking, but it didn't help.
Does anyone have any ideas on what I can do to stop the leaking? Here's a picture of what's happening: