This manual covers the Yamaha 20HP Outboard motor, manufactured between 1996 and 1997. These models are characterized by their 2-stroke, 2-cylinder engine design and carburettor fuel system, delivering a reliable 20 horsepower. Yamaha is renowned for its commitment to engineering excellence, ensuring dependable performance for a wide range of marine applications. This workshop manual provides comprehensive information to understand and maintain these robust outboard motors. The purpose of this factory workshop manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of the Yamaha 20HP Outboard motors. It encompasses essential areas including general information, technical specifications, periodic checks and adjustments, fuel system, power unit, lower unit, bracket unit, and electrical systems. This manual is an indispensable resource for owners, mechanics, and technicians, offering the necessary procedures and insights to ensure optimal performance and longevity of the 20MSHU, 20MLHV, 20MSHV, and 20MLHU models.