This comprehensive repair manual provides in-depth information and guidance for maintaining and repairing Mercury 2-stroke outboard motors from 1965 to 1989, covering models ranging from 45HP to 115HP. It's a valuable resource for both seasoned mechanics and DIY enthusiasts looking to tackle any repair or maintenance task on their Mercury outboard.

The manual delves into essential areas like general information, routine maintenance procedures, detailed engine removal and installation instructions, fuel system operation and troubleshooting, lubrication and cooling system analysis, engine specifications, transmission, drive chain and sprocket maintenance, steering system adjustments, bodywork repair, intake and exhaust system analysis, electrical system troubleshooting, and advanced troubleshooting techniques.

This manual empowers you to confidently diagnose and repair your Mercury outboard, ensuring it runs smoothly and reliably for years to come.

## A Legacy of Power: Exploring Mercury's 2-Stroke Outboards from 1965-1989

The 1965-1989 Mercury 45HP-115HP 2-Stroke Outboard line represents a significant chapter in the history of boating. These engines, a testament to the relentless pursuit of performance and reliability, powered countless vessels across diverse waters. Whether navigating tranquil lakes for leisurely fishing or conquering choppy seas for thrilling adventures, these Mercurys provided a robust and capable power source. This era saw innovations like the introduction of the "Big Twin" 60hp in 1965, a significant leap forward in displacement and performance. Continuous advancements led to the development of the 70hp and 80hp models, solidifying Mercury's position as a leader in the marine industry.

This manual serves as an essential guide for anyone seeking to maintain, repair, or restore these iconic engines. It encompasses a comprehensive range of models, spanning from the 45HP to the powerful 115HP, each offering a unique blend of power and efficiency. Detailed instructions, clear illustrations, and technical specifications empower even novice mechanics to tackle various tasks, from basic tune-ups to more complex engine overhauls. Whether you're a seasoned boat owner or a dedicated enthusiast, this manual is an invaluable resource for keeping your Mercury 2-stroke running smoothly and reliably for years to come.