This manual covers the Suzuki DF Outboards series, including the DF90, DF100, DF115, and DF140 models manufactured between 2001 and 2009. These 4-stroke outboard engines are engineered for reliable performance, offering a range of power outputs from 90 to 140 horsepower. They are designed for various marine applications, providing efficient and durable propulsion for a wide array of watercraft. This comprehensive English language manual serves as a vital resource for owners and technicians alike. It details essential procedures for routine maintenance, engine servicing, and troubleshooting across key systems such as the fuel, lubrication, cooling, and electrical systems. With extensive technical specifications and step-by-step repair guidance, this document is designed to ensure the longevity and optimal performance of your Suzuki DF Outboard.