This factory service manual covers the 1997 Yamaha 20MSHV outboard motor. Engineered for reliability and performance, this 2-stroke, 20 horsepower motor is designed for a variety of marine applications. Its robust construction and precise engineering ensure dependable operation in demanding conditions, making it a trusted choice for boaters. This comprehensive English-language manual provides essential information for the repair, maintenance, and diagnostics of your Yamaha outboard motor. It details general information, periodic inspections and adjustments, fuel system, power unit, lower unit, bracket unit, and electrical system. With step-by-step instructions, detailed wiring and circuit diagrams, and visual aids including illustrations, photos, and exploded views, this manual is an indispensable resource for owners, mechanics, and technicians.