This manual covers the Wacker Neuson WM80, an air-cooled 4-stroke gasoline engine designed for various applications. Featuring a displacement of 79.4 cc and a power output of 2.1 kW (2.8 hp) at 3600 rpm, this engine utilizes a CDI ignition system and a centrifugal clutch that engages around 2300 rpm. Its robust construction and reliable performance make it suitable for demanding operational environments. This Service Repair Workshop Manual provides comprehensive guidance for maintaining and repairing the Wacker Neuson WM80 engine. It details essential procedures, including lubrication with SAE 10W-30 or SAE 10W-40 oil, air filter maintenance, and spark plug specifications. The manual is an indispensable resource for owners, technicians, and mechanics, ensuring optimal performance and longevity through accurate service and troubleshooting information.