Then it sounds someone got their wires crossed and is superseding to the wrong part.
Now I had one case where the OEM was sending out a carburetor with the wrong choke butterflies. I had a fail leaf blower carburetor that had a main nozzle failure that required replacing the whole carburetor. The carburetor choke bleed hole was way too small and cause immediate flooding upon starting and old butterfly was not restrictive enough. I ended enlarging the new butterfly bleed hole halfway between the new one and old one. Ryobi insisted the new carburetor setup was correct. With Ruixing 2 cycle carbs here we not able to get part for them.
Anyway it sounds like you lucked out finding a solution that worked.
