This factory service manual provides comprehensive guidance for the 1988 Yamaha 3LG Outboard Motor. Engineered for reliability and performance, this outboard motor is designed for a variety of marine applications. Its robust construction and advanced features ensure dependable operation, making it a trusted choice for boaters. This manual is specifically tailored to assist with the repair, maintenance, and diagnostics of this model, ensuring its continued optimal performance on the water. The purpose of this manual is to serve as an authoritative resource for all aspects of servicing the Yamaha 3LG Outboard Motor. It covers essential maintenance procedures, including periodic inspections and adjustments, as well as detailed repair instructions for key systems such as the fuel, power, lower, bracket, and electrical units. With step-by-step instructions, detailed specifications, troubleshooting guides, and clear illustrations, this manual empowers owners, mechanics, and technicians to effectively maintain and repair the unit, ensuring its longevity and operational efficiency.