This service repair manual covers Yamaha 2B, 2C, and 2U outboard motors. These models represent Yamaha's commitment to engineering excellence, offering reliable performance for a variety of marine applications. Their robust construction and innovative design ensure dependable operation, making them a preferred choice for boaters seeking quality and durability on the water. This manual provides comprehensive guidance for maintaining and repairing your Yamaha outboard motor. It includes detailed information on general procedures, specifications, periodic inspections, and adjustments. Specific sections cover the fuel system, power unit, lower unit, bracket unit, and electrical system. Furthermore, the manual offers in-depth troubleshooting assistance, disassembly and assembly instructions, cleaning and inspection procedures, testing protocols, installation guidance, lubrication, tune-up procedures, and parts replacement. This resource is designed to assist owners, technicians, and mechanics in ensuring the optimal performance and longevity of their Yamaha outboard motors.