The YANMAR SKE Series Marine Diesel Engine represents a robust and reliable power solution for marine applications. Engineered for durability and performance, these 4-stroke diesel engines are available in naturally aspirated or turbocharged configurations, with water-cooled systems ensuring optimal operating temperatures. Power output, torque, bore, stroke, displacement, and compression ratio vary across the specific models within the SKE Series, offering a range of capabilities from approximately 10 HP to 50 HP. These engines are designed to integrate with an inboard marine gearbox, providing versatile drive options. This Service Workshop Repair Manual in English provides comprehensive guidance for the YANMAR SKE Series Marine Diesel Engine. It covers essential maintenance procedures, including recommended service intervals for oil and filters, lubrication specifications for oil type and capacity, and details on the cooling and fuel systems. The manual also includes technical specifications and information on troubleshooting, enabling owners, mechanics, and technicians to effectively maintain, service, and repair their YANMAR marine diesel engines, ensuring continued optimal performance and longevity.