This manual covers the outboard motor, produced in 1989 as part of its first generation. This robust 2-stroke engine features an 826 cc displacement, delivering 40 horsepower across two cylinders. Engineered for reliability and performance, the 4LF is a water-cooled unit with a CDI ignition system and an outboard gearcase transmission. Its design emphasizes durability, making it suitable for a wide range of marine applications where dependable power is essential. The purpose of this factory service manual is to provide comprehensive guidance for the maintenance, repair, and technical understanding of the 4LF. It details critical information including engine specifications, transmission data, and maintenance schedules, such as recommended fuel, oil types, spark plug gap, and gearcase oil capacity. This English-language resource is an indispensable tool for owners, technicians, and mechanics seeking to ensure the optimal performance and longevity of their outboard motor.