This comprehensive service repair manual is specifically designed for Mercury Mariner 8 HP 2-Stroke outboard motors manufactured between 1986 and 2003. It provides a wealth of technical information and detailed instructions for all aspects of maintenance, repair, and troubleshooting. This manual will guide you through every step, from basic tune-ups and oil changes to more complex procedures like engine rebuilds and electrical repairs. With clear diagrams, step-by-step instructions, and detailed specifications, this manual empowers you to confidently perform all necessary service and repair work on your Mercury Mariner 8 HP 2-Stroke outboard motor.

The Mercury Mariner 8 HP 2-Stroke outboard motor, spanning the years 1986 to 2003, represents a reliable and popular choice for smaller boats seeking a compact and efficient power source. This model range, encompassing engine codes 8M8, 8M9, 8M10, 8M12, 8M15, 8M20, and 8M25, offered a blend of power and portability, making it ideal for fishing, dinghies, and other recreational activities. The 2-stroke design, while requiring a fuel-oil mixture, provided a lightweight and compact engine with a relatively simple maintenance routine. This engine was known for its smooth operation, modest fuel consumption, and durable construction, contributing to its longevity and widespread use.

The Mercury Mariner 8 HP 2-Stroke is characterized by its simple design and ease of operation. Featuring a single-cylinder configuration, this motor boasts a manual start system and a reliable CDI ignition system. Its 2-stroke design, while requiring a pre-mixed fuel-oil mixture, delivers a power-to-weight ratio that makes it highly efficient for its size. The engine is equipped with a 12-volt charging system for battery operation, and while it lacks power trim and tilt, its lightweight design makes it easily maneuverable for manual positioning. This robust and dependable motor has proven itself over the years, providing years of reliable service for countless boaters and enthusiasts.