This Service Repair Manual covers the Mercury Mariner 7.5HP outboard motor, manufactured in 1980. Designed for marine propulsion, this two-stroke, gasoline-powered motor delivers 7.5 horsepower. Its robust engineering ensures reliability for various watercraft applications. This manual provides comprehensive details on its components and operational mechanics, reflecting the quality and performance expected from Mercury marine products. The purpose of this English-language manual is to provide in-depth guidance for maintaining and repairing your Mercury Mariner 7.5HP outboard motor. It includes detailed procedures for tasks such as oil changes and transmission swaps, alongside technical specifications and troubleshooting advice. With hundreds of pages, numerous illustrations, and search functionality, this resource is an essential tool for owners, mechanics, and technicians to ensure the optimal performance and longevity of the motor.