This workshop repair manual covers the YANMAR 6SY STP2 marine engine, a product renowned for its engineering quality and reliability. Designed for demanding marine applications, this engine offers exceptional performance and durability. This manual is intended to provide comprehensive guidance for the service, repair, and maintenance of all YANMAR 6SY STP2 models, ensuring optimal operation and longevity of your marine propulsion system. This comprehensive English-language manual details all aspects of repair, routine maintenance, and servicing. It includes step-by-step instructions, accompanied by pictures and wiring diagrams, to facilitate even complex tasks. The manual's easy layout format and in-depth coverage make it an invaluable resource for owners, mechanics, and technicians alike, enabling efficient and accurate upkeep of the YANMAR 6SY STP2 marine engine.