This manual covers the Suzuki DF90/100/115/140 4-Stroke Outboard Motors manufactured between 2001 and 2009. These gasoline-powered, internal combustion engines are designed for marine propulsion, offering reliable performance for a variety of boating applications. Engineered by Suzuki Marine, these outboard motors are recognized for their robust construction and efficiency, ensuring dependable operation on the water. The purpose of this comprehensive manual is to provide detailed guidance for the maintenance, service, and repair of your Suzuki outboard motor. It includes essential information on routine maintenance, engine specifications, fuel and lubrication systems, electrical systems, and advanced troubleshooting. This resource is invaluable for owners, technicians, and mechanics seeking to understand and maintain the optimal performance and longevity of their DF90/100/115/140 model.