This Factory Service/Repair/Workshop Manual provides comprehensive information for Yamaha Outboard Motors, specifically covering models F50F, FT50G, F60C, and FT60D. These four-stroke outboard motors are engineered for reliable performance and efficient operation in marine environments. This manual details the maintenance, service, diagnosis, and repair procedures essential for keeping these Yamaha outboard motors in optimal condition. The purpose of this English-language manual is to serve as an authoritative resource for owners, mechanics, and technicians. It covers a wide range of topics including general information, detailed specifications, periodic checks and adjustments, fuel system, power unit, lower unit, bracket unit, electrical systems, and troubleshooting. By following the guidelines and procedures outlined within, users can ensure the longevity and proper functioning of their Yamaha outboard motor.