The Tecumseh 631795A Lawn Mower Service Carburetor helps regulate the air and fuel mixture needed for proper engine combustion and operation. This service carburetor mixes fuel with incoming air before the mixture enters the engine, supporting consistent combustion and steady performance. It is designed as a replacement service unit and may require transferring certain usable componen... https://www.wholetoolbox.com/tecumseh-631795a-lawn-mower-service-carburetor/631795A.html