This manual covers the Yamaha 9.9ELD Outboard, a 2-stroke engine model from 1990. Designed for reliable performance on the water, this outboard delivers 9.9 horsepower, featuring a CDI ignition system and water-cooled operation. Its robust construction and straightforward engineering ensure dependable service for various boating applications. The outboard is equipped with a forward, neutral, and reverse gear system, and operates on gasoline with a 50:1 fuel-to-oil mixture. The purpose of this Service Repair Maintenance Manual is to provide comprehensive guidance for the upkeep and repair of your Yamaha 9.9ELD Outboard. It details essential maintenance procedures, including lubrication requirements such as the use of TC-W3 NMMA Certified 2-stroke oil, and general servicing information. Technical specifications and troubleshooting advice are included to assist owners, mechanics, and technicians in maintaining optimal performance and longevity of the unit.