The BRIGGS & STRATTON 491029 Engine Carburetor regulates the air and fuel mixture supplied to the engine, helping support smooth combustion and reliable performance. It delivers the proper fuel mixture needed for consistent engine operation and responsive starting. Replacing a worn, damaged, or clogged carburetor can help address fuel delivery problems, rough running, and starting dif... https://www.wholetoolbox.com/briggs-stratton-491029-engine-carburetor/491029.html