This manual covers the Yamaha 9.9ELD outboard motor, manufactured in 1990. Engineered for reliable marine propulsion, this model represents Yamaha's commitment to quality and performance in its product line. Its design focuses on delivering efficient and dependable operation for a variety of watercraft applications. This comprehensive Factory Service Manual in English provides detailed information essential for the maintenance and repair of your Yamaha 9.9ELD. It includes sections on general information, periodic inspections and adjustments, fuel system, power unit, lower unit, bracket unit, and electrical system. With extensive troubleshooting guides, technical specifications, and clear illustrations, including photos and exploded views with step-by-step instructions, this manual is an indispensable resource for owners and technicians alike.