This workshop service manual provides comprehensive information for the Mercury Mariner outboard engine. Designed for technicians, this manual covers repair and overhaul procedures for this water-cooled engine, which delivers 100 horsepower. The outboard lower unit features forward, neutral, and reverse gears, ensuring versatile operation. This English-language manual is an essential resource for maintaining and repairing the Mercury Mariner. It details critical maintenance tasks, including oil changes and fluid capacities for the gearcase and cooling system, referencing specific intervals and amounts where applicable. The manual's scope extends to detailed repair and overhaul instructions, equipping technicians with the knowledge to ensure optimal performance and longevity of the engine.