This manual covers Mercury Mariner Outboard motors, designed for reliable performance across a range of applications. These robust outboard units are engineered with features such as CDI ignition and water-cooling systems, ensuring efficient operation. Available in various horsepower variants from 70 to 115 HP, these gasoline-powered engines offer a dependable propulsion solution for a variety of watercraft. Their construction emphasizes durability and consistent power output, making them a trusted choice for recreational and professional use. The purpose of this Factory Service Repair Manual is to provide comprehensive guidance for the maintenance and repair of Mercury Mariner Outboard motors. It details essential procedures, technical specifications, and troubleshooting steps necessary for keeping these engines in optimal condition. Owners, technicians, and mechanics will find information on engine specifications, cooling systems, electrical components, and drive units. Adhering to the guidelines within this manual will help ensure the longevity, safety, and peak performance of your Mercury Mariner Outboard.