This comprehensive repair manual provides detailed instructions for servicing and rebuilding Mercury Mariner 2-stroke outboard motors from 1965 to 1989, covering a horsepower range of 45 to 115. The manual includes step-by-step guidance, detailed illustrations, and exploded diagrams for complete tear-down and rebuild procedures. You'll find specific information on torque specifications, maintenance schedules, troubleshooting tips, and component identification. The manual is extensively indexed and searchable, making it easy to locate the information you need quickly. The manual covers the following Mercury Mariner outboard motors: * **1965-1970:** 45 HP, 4 cylinder * **1986-1989:** 50 HP, 3 cylinder * **1965-1985:** 50 HP, 4 cylinder * **1985-1989:** 60 HP, 3 cylinder * **1972-1976:** 65 HP, 3 cylinder * **1965-1971:** 65 HP, 4 cylinder * **1976-1983:** 70 HP, 3 cylinder * **1986-1989:** 70 HP, 3 cylinder * **1984-1986:** 75 HP, 4 cylinder * **1987-1989:** 80 HP, 3 cylinder * **1969-1983:** 80 HP, 4 cylinder * **1973-1977:** 85 HP, 4 cylinder * **1987-1989:** 90 HP, 3 cylinder * **1988-1989:** 100 HP, 4 cylinder * **1988-1989:** 115 HP, 4 cylinder

This comprehensive repair manual caters to a wide range of Mercury Mariner outboard motors, offering detailed instructions and guidance for owners and mechanics alike. It covers a span of 25 years, from 1965 to 1989, encompassing models with power outputs ranging from 45 to 115 horsepower. The manual's scope extends to both 3-cylinder and 4-cylinder outboard engines, ensuring that owners of various Mariner models can find the information they need for successful repairs. Whether it's a complete teardown and rebuild, troubleshooting common issues, or simply conducting routine maintenance, this manual provides clear and concise instructions. The manual is designed for ease of use, featuring clickable chapters and a searchable index. This allows users to quickly find the information they need without sifting through lengthy text. The detailed illustrations, part diagrams, and torque specifications provide visual aids to supplement the written instructions. Furthermore, the manual delves into essential areas like troubleshooting, covering common problems, error codes, and potential solutions. The inclusion of detailed maintenance schedules and recommendations for proper lubrication ensures the longevity and optimal performance of the engine. With its extensive coverage and user-friendly format, this repair manual empowers owners to confidently tackle a wide array of repair and maintenance tasks, keeping their Mercury Mariner outboard motors running smoothly for years to come.