This comprehensive Yamaha 70hp and 90hp 2-stroke outboard motor workshop service repair manual covers models from 1988 to 1994. It provides detailed instructions and illustrations for every service and repair procedure, empowering you to perform your own maintenance and repairs, saving you time and money. The manual covers all models, engines, trim levels, and transmission types, ensuring you have the information you need for any job. Whether you are a seasoned mechanic or a DIY enthusiast, this manual will equip you with the knowledge and confidence to keep your Yamaha outboard running smoothly.

The Yamaha 70hp and 90hp 2-stroke outboard motors, produced between 1988 and 1994, represent a period of innovation and reliability in Yamaha's marine engine lineup. These powerful and dependable motors were popular choices for recreational boaters and fishing enthusiasts alike, offering a balance of performance and fuel efficiency. Equipped with Yamaha's signature two-stroke technology, these engines provided quick acceleration and responsive throttle control, allowing for effortless maneuvering and thrilling water sports experiences. The 70hp and 90hp models were available in a variety of configurations, including long and short shaft options, catering to different hull types and applications. These Yamaha outboards featured robust construction with durable components, ensuring long-lasting performance even in demanding conditions. The engines were known for their smooth running and minimal vibration, enhancing the overall boating experience. The 70hp and 90hp models were also equipped with user-friendly features, such as a convenient tilt mechanism for easy storage and maintenance access. While these reliable and powerful outboards have been discontinued, they continue to be sought after by enthusiasts looking for dependable and durable engines for their boats. Many boat owners appreciate the classic design and trusted performance offered by these Yamaha outboard motors, ensuring they remain a popular choice for marine applications for years to come.