The MTD TC-632370A Carburetor Assembly helps deliver the proper fuel and air mixture for reliable engine operation. It regulates fuel flow and combines it with incoming air before supplying the mixture to the engine for combustion. Proper mixture control supports consistent starting, smooth idling, and dependable engine performance. Replacing a worn or damaged carburetor assembly can ... https://www.wholetoolbox.com/mtd-tc-632370a-carburetor-assembly/TC-632370A.html