This service and repair manual covers Suzuki Outboard motors, specifically the DF 90, 100, 115, and 140 models manufactured between 2000 and 2009. These 4-stroke outboard motors are recognized for their robust engineering and reliability, designed to provide dependable performance for a wide range of marine applications. This manual serves as a comprehensive resource for understanding and maintaining these high-quality marine engines. The purpose of this manual is to provide detailed guidance for the repair and maintenance of your Suzuki outboard motor. It covers essential topics including general information, periodic maintenance schedules, engine control systems, electrical components, fuel systems, and the power unit, mid unit, power trim and tilt, and lower unit. By following the procedures outlined within, owners and technicians can effectively troubleshoot issues, perform necessary repairs, and ensure the optimal functioning and longevity of the outboard motor.