The Yamaha 115ETLJ Outboard, produced in 1986, is a robust 4-cylinder, 2-stroke outboard motor designed for marine applications. With a displacement of 1730cc (105.5ci) and delivering 115 horsepower at 5000-5500 RPM, this engine is engineered for reliable performance on the water. Its water-cooled system, CDI ignition, and carbureted fuel induction contribute to its dependable operation, making it a solid choice for various boating needs. This first-generation model, part of a series spanning from 1984 to 1997 for 115HP variants, represents a significant development in Yamaha's outboard motor technology. This comprehensive Service Repair Maintenance Manual provides essential information for the Yamaha 115ETLJ Outboard. It covers detailed disassembly, repair, assembly, and inspection procedures, supported by exploded diagrams to aid understanding. The manual outlines maintenance schedules, including a 10-hour break-in period and 100-hour regular intervals, along with recommended lubrication, such as TC-W3 outboard oil with a 50:1 fuel-oil ratio. This resource is invaluable for owners, mechanics, and technicians seeking to maintain the optimal performance and longevity of their 1986 Yamaha 115ETLJ outboard motor.