This operation manual covers the YANMAR SKE Marine Diesel Engine, designed for reliable marine propulsion. Engineered with YANMAR's commitment to quality and durability, this diesel engine delivers efficient performance for a variety of marine applications. Its robust construction ensures longevity and consistent operation, making it a dependable choice for boat owners and operators seeking optimal power and fuel efficiency on the water. This manual provides comprehensive guidance for the operation and maintenance of your YANMAR SKE engine. It details essential procedures, including pre-operation checks, starting and stopping protocols, and points to monitor during use. Furthermore, the manual covers critical maintenance, inspection, and handling precautions, along with air venting and periodic self-checks. This resource is designed to assist owners and technicians in keeping the engine in optimal working condition, ensuring its continued performance and reliability.