This manual covers the Volvo Penta MD6A and MD7A Marine Outboard Engines. These engines are engineered for reliability and performance in marine environments. This comprehensive service repair workshop manual provides detailed instructions and high-quality diagrams essential for understanding and maintaining these robust marine propulsion systems. The purpose of this manual is to serve as a definitive guide for service and repair. It includes detailed information on the engine block, lubricating system, fuel system, cooling system, electrical system, and reverse gear. With printable pages and clear instructions, this manual is suitable for both DIY enthusiasts and professional technicians, enabling efficient troubleshooting, maintenance, and repair to ensure optimal engine operation and longevity.