This manual covers the Yamaha 4LF Outboard, a first-generation 2-stroke outboard motor produced in 1989. This water-cooled, single-cylinder engine delivers 4 horsepower and features a CDI ignition system and carburetor fuel delivery. Designed for reliable performance on various watercraft, its robust engineering ensures dependable operation for its intended use. The outboard offers a forward, neutral, and reverse gear selection through its outboard gearcase and can be equipped with either a remote or tiller handle for control. The purpose of this comprehensive English service repair maintenance manual is to provide detailed guidance for the upkeep and repair of your Yamaha 4LF Outboard. It includes information on all disassembly, repair, assembly, and inspection operations, supported by exploded diagrams. This manual is designed to assist owners, mechanics, and technicians in maintaining the vehicle's reliability and performance through clear instructions and technical specifications. The bookmarked and searchable format ensures efficient access to the information needed for proper maintenance and troubleshooting.