This manual covers the Mercury Mariner Jet Outboard, a versatile marine engine available in 65 HP and 80 HP configurations. Engineered for reliability and performance, these outboards are designed to provide efficient propulsion for a wide range of watercraft. Their robust construction and advanced jet drive system ensure dependable operation in various aquatic environments, making them a suitable choice for both recreational and professional use. This comprehensive Service Repair Workshop Manual provides detailed instructions and technical specifications for the maintenance and repair of your Mercury Mariner Jet Outboard. It includes in-depth coverage of all major systems, including the powerhead, lower unit, fuel system, electrical components, and control systems. Whether you are a do-it-yourselfer or an experienced mechanic, this manual will guide you through standard maintenance procedures, troubleshooting, and complex repairs, ensuring your engine operates at peak performance.