Ty, the B&S model number only tells you the generic type of carburetor: Vacu-Jet, Pulsa-Jet or Flo-Jet. The design generation, immediately after the engine size in the model number, gives a good idea of the specifics of the carburetor but to be more precise you can use the engine's type number (second series of numbers, after the model number). Go to this site, and enter both the model number and type number:
http://www.briggsandstratton.com/engines/support/operators-manuals/That will give you the illustrated parts list and the operator's manual for the particular engine you are looking at. The illustrations show the carburetor (and other parts), and you can verify them by checking them against the actual engine.
