This comprehensive Mercury Marine 250 OptiMax Jet Drive Service Repair Manual provides detailed instructions and diagrams for servicing and repairing your jet drive from top to bottom. It is designed for Do-It-Yourselfers, offering step-by-step guidance to ensure successful repairs. The manual covers a wide range of topics including: specifications, maintenance, general information, jet installation, electrical systems, ignition, charging and starting systems, timing, synchronizing and adjusting, fuel system, fuel pump, direct fuel injection, oil injection, emissions, powerhead, cooling, pump unit, and color diagrams. All pages are printable, allowing you to take the information you need directly to your garage or workshop.

The Mercury Marine 250 OptiMax Jet Drive is a powerful and versatile outboard motor designed for a variety of watercraft, from small runabouts to larger fishing boats. This jet drive system, with its powerful 250 horsepower OptiMax engine, is known for its exceptional performance and reliability. The Mercury Marine 250 OptiMax Jet Drive combines the efficiency of a direct-injection fuel system with the durability of a jet drive propulsion system. This unique combination allows for exceptional fuel economy while providing the power and maneuverability needed for challenging waters. The jet drive system eliminates the need for a traditional propeller, making it ideal for shallow water applications and areas with potential for debris or obstacles. The system also features a robust design, capable of handling the rigors of saltwater environments and heavy use. This manual provides comprehensive information and detailed instructions for servicing and repairing all aspects of the Mercury Marine 250 OptiMax Jet Drive, ensuring that owners and technicians have the knowledge necessary to keep these powerful engines running smoothly.