This is how I originally set float height when I bought my bike. I turn the carb at about a 45 degree angle to JUST engage the float arm with the spring inside the needle valve.
This is how service manuals have specified to adjust it for other bikes I've worked on.
However, someone mentioned that this was not how to do it. I brought my floats about 3mm lower in the bowl when I adjusted them... and guess what? The bike feels like it has a stumble (ever so slight) when you're crusing at about 15%-20% throttle.. That whole pilot-to-main jet handoff. The sort of feeling that shimming a needle typically irons out.
Well I have my needle shimmed about one click higher than stock already.
So I wanted to get opinions on the proper way to measure float height. Zero spring tension at the needle valve, or do I want to have the carb perfectly upside down with the full weight of the floats pushing on the needle valve?