This manual covers the Johnson Evinrude 28 Hp outboard motor, spanning production years from 1956 through 1970. These engines are known for their robust construction and reliable performance, making them a popular choice for various boating applications. This comprehensive guide provides in-depth information to ensure the continued optimal operation and longevity of your Johnson Evinrude 28 Hp motor. The purpose of this service manual is to provide owners, mechanics, and technicians with all the necessary information for maintenance, repair, and troubleshooting. It details procedures for all styles of the 28 Hp model, covering essential areas such as safety, tuning, powerhead, fuel, ignition, electrical systems, accessories, lower unit, hand starter, and general maintenance. With detailed step-by-step instructions, clear illustrations, and diagnostic guidance, this manual empowers users to perform service tasks effectively and confidently.