This manual covers the Mercury Mariner 10 HP outboard motor, a reliable and efficient power unit designed for a variety of watercraft. Known for its robust construction and straightforward operation, this motor is an excellent choice for recreational boating, fishing, and auxiliary propulsion. Its design emphasizes dependable performance and ease of use, making it suitable for both novice and experienced boaters. The 10 HP rating provides ample power for small to medium-sized boats, ensuring a capable and enjoyable experience on the water. The purpose of this comprehensive Factory Service Repair Manual is to provide detailed information for the maintenance, repair, and servicing of your Mercury Mariner outboard motor. It includes essential sections on engine specifications, lubrication, fuel system management, ignition, cooling, and transmission. You will find step-by-step instructions for common maintenance tasks, troubleshooting guides for identifying and resolving issues, and technical data necessary for accurate repairs. This manual is an indispensable resource for owners, technicians, and mechanics seeking to ensure the longevity and optimal performance of their Mercury Mariner 10 HP outboard motor.