This service manual covers the Yamaha 2B marine outboard, designed for reliable performance and durability in marine applications. Built with Yamaha's commitment to engineering excellence, this model offers a balance of power and efficiency, making it suitable for a range of boating activities. Its robust construction and thoughtful design ensure dependable operation, providing boaters with confidence on the water.

This manual serves as a comprehensive guide for maintaining and repairing your Yamaha 2B marine outboard. It details essential procedures, including general information, specifications, periodic inspections and adjustments, and in-depth coverage of the fuel system, power unit, lower unit, bracket unit, and electrical system. Furthermore, it includes a valuable section on trouble analysis to assist in diagnosing and resolving common issues, empowering owners and technicians to keep the outboard in optimal condition.