This Service Repair Manual covers the Mercury Mariner 7.5HP outboard motor, manufactured in 1977. Designed for marine propulsion, this robust 7.5 horsepower outboard motor exemplifies reliable engineering for its intended use. Its durable construction and straightforward operation have made it a trusted choice for boaters seeking dependable performance on the water. This comprehensive English-language manual provides essential information for maintaining and repairing your Mercury Mariner 7.5HP. It details fundamental maintenance procedures, offers step-by-step repair guidance with illustrations, and includes troubleshooting advice for a wide range of issues, from routine oil changes to more involved transmission work. This resource is designed to assist owners and technicians in keeping their outboard motor in optimal working condition.