This manual covers the Suzuki 30-40HP Outboard Motors, including specific models such as the DT30 (Prior to 1988), DT30C (After 1987), DT40 (Prior to 1984), DT35 (After 1986), and DT40 (After 1983). These robust 2-stroke engines are designed for reliable performance in various marine applications. Their engineering prioritizes durability and efficiency, making them a trusted choice for boaters seeking dependable power. This comprehensive Service Repair Workshop Manual provides detailed instructions and technical specifications essential for the maintenance and repair of your Suzuki outboard motor. It includes coverage for tune-up procedures, lubrication, fuel and ignition systems, cooling system, power head, starter system, and lower unit. With easy-to-read text and high-quality diagrams, this manual serves as an indispensable resource for owners, technicians, and mechanics to ensure optimal performance and longevity of the engine.