This workshop repair manual covers Mercury Mariner Outboard motors manufactured between 1987 and 1993. These outboard motors, available in 70 HP and 75 HP configurations, are known for their robust engineering and reliability in marine applications. Designed for a variety of watercraft, they represent a dependable choice for recreational and professional use, offering efficient performance and durability. This comprehensive manual provides detailed information essential for servicing, teardowns, repairs, overhauls, and adjustments. It includes step-by-step instructions, illustrations, diagrams, pictures, and exploded views to guide users through complex procedures. Technical specifications and safety guidelines are also covered, ensuring that owners, mechanics, and technicians have the resources necessary to maintain these Mercury Mariner outboards in optimal working condition.