Bought a rebuild kit and did a thorough job cleaning the carb up, put it back together and got my engine going again, but it leaks fuel as if the inlet jet is bad. This is an LMT Walbro, Briggs part 793224 on an 18 hp Craftsman I/C engine. Tried a new float needle, figuring there might have been a problem with the new rubber tipped one in the kit, but it made no difference. Since the float is nonadjustable, that leaves the brass needle seat which I didn't replace since it looked fine to me and would be a pain to get out. Anyone have similar problems after a rebuild?