This service repair workshop manual provides comprehensive guidance for Yamaha F20A, F25A, and F25X outboard motors. Engineered for reliability and performance, these Yamaha outboard motors are designed for a wide range of marine applications. This manual covers specific serial number ranges, ensuring you have the correct information for your unit. This English-language manual details essential maintenance procedures, troubleshooting steps, and technical specifications necessary for the upkeep and repair of your Yamaha outboard motor. It is intended for owners and technicians alike, offering clear instructions and diagrams to help you perform tasks efficiently and confidently, ultimately saving time and money while ensuring your motor operates at its best.