This manual covers the 6LJ, a first-generation model produced in 1986. This 2-stroke, single-cylinder engine, with a displacement of 112 cc, delivers 6 horsepower and operates within a full-throttle RPM range of 4500-5500 RPM. It features a Mikuni carburetor, CDI ignition, and a Forward, Neutral, Reverse transmission with a 2.0:1 gear ratio. The engine's bore and stroke are 55 mm x 40 mm with a compression ratio of 6.0:1. Available in Short Shaft (S) or Long Shaft (L) configurations, this engine weighs approximately 25 kg (55 lbs) and is designed for reliable performance. This Service Repair Maintenance Manual, written in English, provides comprehensive guidance for the 6LJ. It details essential maintenance procedures, including lubrication specifications such as the 50:1 oil-fuel ratio and gearcase oil capacity, as well as tuning information like spark plug type and gap. The manual also covers technical specifications, troubleshooting, and safety guidelines. With approximately 150 pages, it serves as an indispensable resource for owners, mechanics, and technicians to ensure the proper upkeep and repair of their 6LJ engine.