'81 XS400H Leaking Fuel

[sporkcow]

I'm wrestling with an '81 XS400H that won't stop leaking fuel. Turns out it's winning! I have taken the carbs off the bike 3 times to adjust the floats. When I took them off the first time the floats were adjusted to just over one inch (about 27 mm) That seems to be what they are supposed to be set to, but it was leaking fuel like crazy from the left carb (as you're sitting on the bike). The fuel is overflowing from the bowl and dripping out the bottom of the air box. I adjusted the floats up a little and it seemed to help but not fix the problem. They are currently set to just shy of 1.25 inches and are still leaking! It leaks much less when on the center stand, but still a significant amount. Also, the bike is much harder to start now, but it seems to run better than it did after it's warmed up. I've looked through the threads on leaky carbs but I haven't found anything that has fixed the problem.

Before I take the carbs off again, any suggestions? The carbs are nice and clean on the inside (previous owner had them professionally cleaned about 2 years ago) and I cleaned them on the outside the last time I had them off. Any suggestions from more experienced wrestlers to give me a leg up in the match would be much appreciated. Thanks so much!