Haaahahahhaahhhhh!!!!
https://www.truevalue.com/garage-driveway-cleaner-gal
Most likely bike’s that’s been sitting around long enough to have petcock and float-valve issues is gonna have clogged jets and fuel circuits as well. Gordon does an amazing job restoring carbs and not much is gonna sneak by him. Your bike will be transformed! I’ll run like it did when it first rolled off showroom floor!!!