This manual covers the Yamaha 3LG Outboard, a 1988 model year marine engine. Engineered for reliability and performance, this 2-stroke, water-cooled outboard delivers approximately 30 horsepower. Its design features a carbureted fuel induction system and CDI ignition, providing robust power for a variety of marine applications. The transmission offers forward, neutral, and reverse gear selection, coupled with a standard outboard lower unit and propeller drive system. This model represents a solid choice for boaters seeking dependable propulsion. This comprehensive service repair maintenance manual provides detailed instructions for all disassembly, repair, assembly, and inspection operations. It includes exploded diagrams to aid in understanding component relationships before disassembly. Essential maintenance procedures, such as recommended oil types for the 2-stroke engine and gearcase, fuel-oil mixture ratios, and specific spark plug requirements, are outlined to ensure optimal engine longevity and performance. This manual is an indispensable resource for owners, mechanics, and technicians to effectively maintain and repair the Yamaha 3LG Outboard.