The Kohler 1685337-S Carburetor Complete Kit helps restore proper fuel delivery and dependable engine performance for compatible Kohler engines. It works by supplying the correct air and fuel mixture to the engine, promoting smooth starting, consistent power output, and efficient combustion during operation. Made to replace a worn, clogged, or damaged carburetor assembly, it helps imp... https://www.wholetoolbox.com/kohler-1685337-s-chainsaw-complete-kit/1685337-S.html