This manual covers the Yanmar SVE Series marine diesel engines, specifically models SVE8, SVE8G, SVE12, and SVE12G. These diesel engines are engineered for reliable performance in marine applications. Their robust construction and efficient design ensure dependable operation, making them a strong choice for various marine power needs. This comprehensive service repair manual provides detailed information essential for the maintenance and repair of your Yanmar SVE Series engine. It includes sections on engine summary, maintenance and inspection, alignment, adjustments, electrical equipment, troubleshooting common issues, and engine storage. The manual features easy-to-read text, high-quality diagrams, and step-by-step instructions with pictures, designed to assist owners and technicians in keeping the engine in optimal condition.