This service and repair manual covers the 2004 Suzuki DF 90, DF 100, DF 115, and DF 140 four-stroke outboard motors. These robust and reliable engines are engineered for demanding marine applications, offering dependable performance and efficiency. Their advanced four-stroke technology ensures smooth operation and optimal fuel economy, making them an excellent choice for a wide range of boating needs. This comprehensive manual provides detailed information essential for the maintenance and repair of your Suzuki outboard motor. It includes sections on general information, periodic maintenance schedules, engine control systems, electrical components, fuel systems, power units, trim and tilt mechanisms, lower units, and wire and hose routing. By following the procedures outlined within, owners and technicians can ensure their motor operates at peak performance and longevity.