The Tecumseh 640130 Lawn Mower Carburetor helps deliver the proper fuel and air mixture for smooth, dependable engine operation and consistent mowing performance. Designed as a replacement carburetor, it regulates fuel flow to support reliable starting, steady idling, and proper combustion. Replacing a worn or faulty carburetor can help address common engine problems such as hard star... https://www.wholetoolbox.com/tecumseh-640130-lawn-mower-carburetor/640130.html