This manual covers the Mercury Mariner 6 HP 2-Stroke outboard motor, produced between 1986 and 2003. Designed for reliable performance, these engines are known for their robust construction and efficient 2-stroke operation, making them suitable for a variety of small boat applications. Their straightforward engineering ensures dependable power output, with a focus on user-friendly operation and maintenance. This comprehensive service manual provides detailed information for the maintenance, repair, and troubleshooting of your Mercury Mariner 6 HP 2-Stroke outboard motor. It includes essential procedures for routine servicing, engine tune-ups, cooling system maintenance, and gearcase lubrication. Technical specifications, diagnostic guidance, and safety precautions are also covered, enabling owners and technicians to keep the engine operating at peak performance and longevity.