Hi, all. I'm in the process of restoring a 1987 Aerotech go-kart that is equipped with a 3hp Briggs engine. Unfortunately, when the kart was displayed at a museum nobody thought to drain the gas or prep the engine. From my research, it looks like the carb is part #397939 and is discontinued. I also couldn't find the rebuild kit part number as I would consider just rebuilding it if the right pieces were available. Thanks for any assistance on how best to proceed!