Gumout Carb/Choke & Parts Cleaner removes gum, varnish, and dirt from carburetors, choke valves, and unpainted metal parts. It works fast to help fix hard starting, rough idling, and poor engine performance. This cleaner is quick‑drying and safe for many engine components (except painted and rubber‑only parts). It improves fuel economy by restoring proper airflow and combustion efficiency. Keep a can on hand for routine maintenance and better running machines.