This workshop service repair manual covers Briggs & Stratton engines, specifically models 430447 and 580447. These engines are liquid-cooled, 4-cycle, petrol engines featuring an in-line, 3-cylinder configuration. They are available with displacements of 697 cc and 952 cc, and come equipped with comprehensive systems including governor, carburetor, fuel, ignition, lubrication, cooling, electrical, charging, and starter systems. These engines are engineered for reliability and performance, making them suitable for a wide range of applications. This manual provides essential information for the maintenance and repair of your Briggs & Stratton engine. It includes detailed illustrations, step-by-step instructions, diagrams, and pictures covering all major systems and components. Key areas addressed include a maintenance schedule, service specifications, tightening torques, and in-depth procedures for cylinder head and valve service, cylinder block disassembly, crankshaft, camshaft, and bearing inspection and assembly, as well as piston ring and connecting rod inspection and assembly. Troubleshooting guidance is also provided to help diagnose and resolve common issues, ensuring your engine remains in optimal working condition.