This workshop service manual provides comprehensive information for the marine engine with a Dual Prop sterndrive system. Designed for reliability and performance, this engine is engineered to meet the demands of marine applications. Its dual prop configuration enhances maneuverability and efficiency, making it a robust choice for various boating needs. This manual covers all aspects necessary to understand and maintain this advanced marine propulsion system. This manual serves as an essential resource for professional technicians and DIY mechanics alike. It details periodic maintenance schedules, step-by-step repair instructions, troubleshooting guides, overhaul procedures, and wiring diagrams. With hundreds of pages of information presented in English, this document is designed to empower users to perform maintenance and repairs effectively, potentially saving on labor costs. The manual is provided in a printable format, ensuring convenient access and usability across all operating systems.