Hey everyone, I'm back at it again with my carbs. So I put them back on the bike after my last round of maintainance and it ran great for a while until it started puking fuel out of the exhaust..
So they're off again and I'm double checking my work. I'm pretty sure I know which carb is the culprit because cylinder 2 was luke warm to the touch even though the others were hot.
I was very precise with my float heights so I don't think that's the issue, but I'm still pretty sure it must be the float in that bowl.
So I hit with an air compressor and it so far checks out, right side up air passes through each valve like it should, upside down air doesn't get past the float valves.
I still need to try it with gasoline instead of air. If my thinking is correct then the problem float isn't reseating like it should and gasoline is flowing freely through that float valve, flooding the cylinder, and draining into the exhaust pipe.
I still need to soak the floats in gasoline to see if the problem one sinks and weigh them to be sure.
In the meantime I have one silly question and also want to petition for general advice.
I'm uploading a picture of my float needle. Can someone tell if it's original and which way the tines are supposed to face when it's seated? I couldn't find am answer.

Edit, one other clue: when I took the bowls off the problem one had less gasoline in it than the others.
Edit: When I really crank the PSI up on the compressor the problem float bow moves significantly more than the others indicating a weaker seal!
Edit 2: Ok when I crank the pressure up they all behave erratically so maybe not a useful line of inquiry.