No Ty, that early plastic carburetor (which they called Minion) was used from about 1980. My 1982 Briggs 92508 has one, unfortunately. Mine hasn't given any trouble, but they were prone to distorting so things didn't fit together well. It's probably a good idea to avoid dismantling them, if you get the choice. The metal versions were more desirable, and more popular, and I think the Minion was discontinued after a few years but I'm not sure.
