This comprehensive Mercury Mariner 80hp Outboard Workshop Service Repair Manual is your essential guide for maintaining and repairing your engine. Covering models from 1969 to 1983, this manual provides detailed instructions and illustrations for every service and repair procedure imaginable. Whether you're a seasoned mechanic or a DIY enthusiast, this manual empowers you to perform a wide range of tasks, from routine maintenance to complex repairs. With clear, step-by-step instructions and numerous diagrams, you'll gain a thorough understanding of your engine's workings. From troubleshooting common issues to performing engine overhauls, this manual equips you with the knowledge and confidence to tackle any repair job. The manual encompasses all models, engine types, trim levels, and transmissions. Whether you need to replace a carburetor, rebuild the powerhead, or adjust the ignition system, this manual has you covered. You'll find in-depth sections on topics such as: * **Engine Disassembly and Assembly:** Detailed instructions for disassembling and reassembling all engine components. * **Fuel System and Carburetor Repair:** Comprehensive guides for servicing and repairing the fuel system and carburetors. * **Ignition System Diagnosis and Repair:** Troubleshooting and repair procedures for the ignition system, including the magneto and spark plugs. * **Cooling System Maintenance:** Information on maintaining and repairing the cooling system, including the water pump and thermostat. * **Lower Unit Service and Repair:** Instructions for servicing and repairing the lower unit, including gearcase, propeller, and steering system. * **Electrical System Troubleshooting and Repair:** Guides for diagnosing and repairing electrical problems, including wiring diagrams and component identification. This manual is your ultimate resource for keeping your Mercury Mariner 80hp outboard engine running smoothly. It provides the necessary information to ensure your engine's longevity and performance, saving you time and money in the long run.

The Mercury Mariner 80hp outboard motor, spanning production years from 1969 to 1983, was a powerful and reliable workhorse for recreational boaters. This engine, known for its simplicity and rugged design, became a popular choice for a variety of applications, ranging from fishing boats to small runabouts. Its 80 horsepower output provided ample power for navigating lakes, rivers, and coastal waters, while its compact size and lightweight construction made it easy to install and transport. This outboard motor featured a robust 2-cylinder, 2-stroke engine, renowned for its durability and easy maintenance. The Mercury Mariner 80hp boasted a reliable ignition system, a well-designed cooling system, and a sturdy transmission, all contributing to its exceptional dependability. The engine was also known for its relatively low fuel consumption, making it a cost-effective option for extended outings. The Mercury Mariner 80hp's popularity was further enhanced by its versatility, offering different features and options to meet individual preferences and needs. Available with various gear ratios and propeller options, this outboard allowed boaters to customize their performance and fuel efficiency. The engine's design also ensured easy access to components for routine maintenance and repairs, further contributing to its long-term value and overall user satisfaction.