This Service Repair Workshop Manual covers Mercury Mariner Classic Outboards produced between 1965 and 1990. These engines, known for their reliability and robust engineering, were designed for a wide range of marine applications. Featuring 1 and 2-cylinder, 2-stroke configurations with horsepower ranging from 1.2hp to 40hp, the Mariner series offers dependable performance on the water. Detailed specifications for engine displacement, cooling systems, and transmission components are provided within this manual, catering to the diverse models within this production span. This comprehensive English-language manual provides essential information for maintaining and repairing your Mercury Mariner outboard. It includes hundreds of detailed photos, diagrams, and exploded views to guide you through all repair, servicing, and troubleshooting procedures. Coverage extends to routine maintenance items such as oil types, fuel mixtures, spark plug specifications, and gear lube requirements. The manual is designed to be printable, allowing for convenient use by owners, mechanics, and technicians to ensure optimal performance and longevity of their Mercury Mariner engines.