This comprehensive repair manual is your essential guide to maintaining and repairing 1983-1987 Yamaha 150HP, 175HP, 200HP, and 220HP 2-stroke outboard motors. It covers all versions of these models, providing detailed instructions and diagrams for a wide range of tasks.

Inside, you'll find everything you need to perform routine maintenance, troubleshoot common issues, and tackle complex repairs. From engine removal and installation to fuel system adjustments, lubrication and cooling system checks, and electrical system diagnostics, this manual covers it all. You will also have access to valuable information on the transmission, drive chain, sprockets, steering system, shocks, body work, intake and exhaust systems, and engine specifications.

With this manual, you can save time and money by diagnosing and fixing problems yourself. No more waiting for a mechanic or struggling with incomplete information. This manual provides the comprehensive instructions and diagrams you need to work on your outboard with confidence.

The 1983-1987 Yamaha 150HP, 175HP, 200HP, and 220HP 2-stroke outboard motors were powerful and reliable workhorses that powered a wide range of boats during their production years. These engines were known for their robust construction, powerful performance, and relative simplicity, making them popular choices for both recreational and commercial use. The 150HP model was the base engine, with the 175HP, 200HP, and 220HP models featuring increased displacement and modifications to achieve their respective horsepower ratings. All models shared the same fundamental design, featuring a 2.6-liter, inline six-cylinder, two-stroke engine with a reed valve induction system. These engines were renowned for their smooth operation and impressive power delivery, making them ideal for both cruising and fishing applications.

These Yamaha outboards were characterized by their durable construction, with features like a cast iron powerhead and aluminum crankcase. They were equipped with a variety of advanced features for their time, including a CDI ignition system, a manual choke, and a single-lever throttle and shift control. The 1983-1987 Yamaha 2-stroke outboards were also known for their reliable performance and relatively straightforward maintenance. However, like all two-stroke engines, these models required regular oil changes and careful attention to fuel mixture. Despite their age, these engines continue to be popular for those looking for reliable and powerful outboard options, and a robust aftermarket support network exists for these engines, ensuring the availability of parts and repair expertise.