"A carburetor is an essential part of many small engines, responsible for mixing air and fuel in the correct ratio for combustion. The carburetor assembly consists of several important components, including the carburetor choke shaft and the carburetor insulator. The choke shaft regulates airflow into the engine, helping with starting and controlling engine speed. The carburetor insu... https://www.wholetoolbox.com/power-tools/carburetors