Today, I was cleaning the carburetor on the 10550 because it was a little dirty and I had a bad float. So, I had a brand new part that I had on my old carburetor that was from the 10323, installed it on there and then changed the float because the original float on the 10550 with the needle and seat was still leaking even though I think the float was set correctly, but it was bad. I had a spare float that was good, put it on, and then cleaned the carburetor, installed the good used gaskets, and installed a Briggs and Stratton pilot jet, and it’s running great today!