This manual covers Yanmar Inboard Engines, including ONE, TWO, and THREE cylinder diesel models. Designed for reliability and robust performance, these engines are engineered for demanding marine applications. While specific production years are not detailed, this guide encompasses a range of model years and engine types, providing essential information for maintaining and operating your Yanmar inboard engine. This comprehensive Service Repair Shop Factory Manual in English provides detailed instructions for adjustments, minor service, repairs, and major aftermarket projects. It includes extensive illustrations and diagrams to aid in understanding complex procedures. The manual is fully printable and intended for use by owners, mechanics, and technicians, offering the same level of detail as materials used by authorized service centers.