This manual covers the Mercury Sport Jet 250, a powerful marine engine designed for high-performance boats. It is specifically tailored for use in Bayliner and Sea Ray vessels, offering exceptional power and responsiveness for watersports and cruising. The engineering behind the Sport Jet 250 emphasizes reliability and durability, ensuring a consistent and enjoyable boating experience. Its unique jet propulsion system provides excellent maneuverability and shallow water capability, making it a versatile choice for various aquatic environments.

The purpose of this comprehensive service manual is to provide detailed guidance for the maintenance, repair, and technical understanding of the Mercury Sport Jet 250 engine. It includes essential information on routine servicing, diagnostic procedures, troubleshooting common issues, and in-depth technical specifications. Owners, service technicians, and mechanics will find this manual an indispensable resource for ensuring the optimal performance, longevity, and safety of their marine propulsion system.