The Mercury Mercruiser 250 OptiMax Jet Drive, manufactured between 2002 and 2004, represents a robust marine propulsion system engineered for reliable performance. This Jet Drive Outboard Engine utilizes an OptiMax direct injection two-stroke gasoline engine, designed to provide efficient and powerful operation on the water. Its advanced engineering ensures durability and optimal functionality for a variety of marine applications, making it a trusted choice for boat owners seeking dependable power. This comprehensive manual serves as an essential resource for owners, mechanics, and technicians. It covers a wide array of topics, including general information, routine maintenance, engine removal and installation, fuel and lubrication systems, cooling, transmission, steering, electrical systems, and advanced troubleshooting. Within its pages, you will find detailed repair procedures, parts lookup information, and service guidelines designed to help you maintain and repair your Mercury Mercruiser 250 OptiMax Jet Drive effectively, ensuring its continued optimal performance and longevity.