This service repair manual covers the Yamaha 20HP 2-Stroke Outboard models manufactured between 1996 and 1997, including model codes 20MSHU, 20MLHV, 20MSHV, and 20MLHU. These water-cooled, 2-cylinder outboard engines feature a CDI ignition system and carburetor induction, delivering 20 horsepower. Engineered for reliability and performance, these Yamaha outboards are designed to provide dependable power for a variety of marine applications. This comprehensive manual provides detailed guidance for owners, mechanics, and technicians. It includes essential information on general procedures, technical specifications, periodic inspections and adjustments, and in-depth coverage of the fuel system, power unit, lower unit, bracket unit, and electrical system. Furthermore, this manual offers extensive troubleshooting guidance for common issues such as no-start conditions, rough idling, stalling, poor performance, overheating, and steering problems, ensuring optimal maintenance and repair of your Yamaha outboard.