This comprehensive **Johnson Evinrude Outboards 50 HP 1973-1990 Factory Service Repair Manual** provides you with the same detailed information used by factory-trained technicians. This manual is your guide to understanding and performing maintenance and repairs on your outboard motor. You'll find detailed instructions and illustrations for every procedure, ensuring you can confidently tackle any task. The manual covers a wide range of topics, including: * **Quick Reference Data:** Essential information at your fingertips for quick access. * **General Information:** Overview of your outboard motor and its components. * **Tools & Techniques:** Proper tools and techniques for working on your outboard. * **Troubleshooting:** Diagnose and solve problems with your outboard effectively. * **Lubrication, Maintenance & Tune Up:** Regular maintenance procedures to keep your outboard running smoothly. * **Engine Synchronization & Linkage Adjustments:** Fine-tune your engine for optimal performance. * **Fuel System:** Understanding and servicing your outboard's fuel system. * **Ignition & Electrical Systems:** Comprehensive guide to your outboard's electrical system. * **Power Head:** Detailed information on the power head, including disassembly and reassembly. * **Gearcase:** Understanding and servicing the gearcase, including troubleshooting and repair. * **Power Trim & Tilt Systems:** Troubleshooting and repairing power trim and tilt systems. * **Sea Drives:** Information on servicing and maintaining sea drives. * **Wiring Diagrams:** Clear and detailed wiring diagrams for easy troubleshooting. With this factory service manual, you'll have the knowledge and tools to maintain and repair your Johnson Evinrude 50 HP outboard motor. You'll save money on costly mechanic visits and gain valuable experience with your outboard. All information is presented in a clear and concise manner, with detailed illustrations and numbered instructions to guide you through every step.

The Johnson Evinrude 50 HP outboard motor, produced from 1973 to 1990, represents a classic era of reliable and powerful boating propulsion. This range of motors encompassed several model variations, each with distinct features and specifications. These 50 HP engines were known for their robust construction, utilizing cast iron powerheads for durability and longevity. Despite their age, many of these motors remain in use today, providing ample power for a variety of recreational boating activities, including fishing, waterskiing, and leisurely cruising. The 1973-1990 Johnson Evinrude 50 HP models offered a balance of power and efficiency, making them popular choices for a wide range of boat sizes and applications. These motors featured a variety of technological advancements, such as the introduction of the "Quiet Shift" system for smoother gear changes, and the development of improved lubrication systems for increased reliability. The 50 HP engines were also known for their relatively simple design, making them easy to maintain and repair. With the right care and maintenance, these classic motors can continue to provide dependable power and many years of reliable service. The Factory Service Repair Manual provides detailed information on the various systems and components, offering valuable insight for troubleshooting, diagnosing, and repairing these resilient engines.