This Service Repair Manual covers the Suzuki 4-stroke Outboard models DF90, DF100, DF115, and DF140 manufactured between 2001 and 2009 (K1-to-K9). These engines are engineered for reliability and performance, offering a range of power outputs from 90 to 140 horsepower. The 4-stroke design ensures efficient operation and reduced emissions, making them a strong choice for various marine applications. This manual provides comprehensive information to help you understand and maintain your Suzuki outboard. This professional service and repair manual is designed to assist owners, mechanics, and technicians in performing all necessary maintenance and repairs. It includes detailed step-by-step instructions, hundreds of photos, diagrams, and illustrations, along with essential specifications such as fluid capacities, timing positions, and wiring schematics. The manual also provides a detailed maintenance schedule, empowering users to keep their Suzuki outboard in optimal condition and potentially save on dealership service costs.