This is an aftermarket carburetor to fit the popular Honda Z50/CRF50-style clone engines (50,70,90, or 110cc) used on small dirt bikes, kid’s ATVs, and mopeds/motopeds. On these engines the cylinder is horizontal, and all look very similar despite ranging between 50-110cc and being either automatic, manual, or semi-auto.
This particular carburetor was sold for the 110cc variant, and should come jetted as such. It will also fit the other size variants all the way down to 50cc; however you will likely need to re-jet it.