This manual covers the Yamaha E48MLHX outboard motor, manufactured in 1999. Designed for reliable performance, this gasoline-powered outboard engine represents Yamaha's commitment to engineering excellence in marine propulsion. Its robust construction and efficient design make it suitable for a wide range of boating applications, ensuring dependable operation on the water. The purpose of this comprehensive Factory Service Repair Maintenance Manual is to provide detailed guidance for the repair, maintenance, and servicing of your Yamaha E48MLHX outboard motor. It includes step-by-step instructions, accompanied by illustrations, photos, wiring diagrams, circuit diagrams, and exploded views. This manual covers essential areas such as general information, periodic inspection and adjustments, fuel system, power unit, lower unit, bracket unit, electrical system, and troubleshooting, enabling owners and technicians to maintain optimal performance and longevity.