This Service Repair Manual covers the 2003 Mercury 225 HP Outboard FourStroke EFI, a powerful and reliable marine propulsion system designed for a wide range of boating applications in both freshwater and saltwater environments. Manufactured by Mercury Marine, this outboard motor utilizes advanced Electronic Fuel Injection (EFI) for optimal performance and efficiency, powered by a gasoline internal combustion engine. Its robust engineering ensures dependable operation, making it a trusted choice for marine enthusiasts and professionals alike.

This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your Mercury 225 HP Outboard FourStroke EFI. It details critical procedures, technical specifications, and safety guidelines necessary for keeping the unit in optimal working condition. Whether you are an owner performing routine checks or a technician undertaking complex repairs, this guide serves as an indispensable resource for understanding and servicing this high-performance outboard motor.

This Service Repair Manual covers the 2003 Mercury 225 HP Outboard FourStroke EFI, a powerful and reliable marine propulsion system designed for a wide range of boating applications in both freshwater and saltwater environments. Manufactured by Mercury Marine, this outboard motor utilizes advanced Electronic Fuel Injection (EFI) for optimal performance and efficiency, powered by a gasoline internal combustion engine. Its robust engineering ensures dependable operation, making it a trusted choice for marine enthusiasts and professionals alike.

This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your Mercury 225 HP Outboard FourStroke EFI. It details critical procedures, technical specifications, and safety guidelines necessary for keeping the unit in optimal working condition. Whether you are an owner performing routine checks or a technician undertaking complex repairs, this guide serves as an indispensable resource for understanding and servicing this high-performance outboard motor.