This service manual covers the Johnson Evinrude 3.0 Hp outboard motor, spanning production years from 1956 through 1970. Designed for reliable performance and durability, this engine is a testament to robust engineering, intended for a wide range of recreational and utility boating applications. Its straightforward design and proven components ensure consistent operation and ease of use for owners. The purpose of this manual is to provide comprehensive guidance for the maintenance, repair, and servicing of your Johnson Evinrude 3.0 Hp motor. It includes detailed procedures, technical specifications, troubleshooting charts, and essential safety information. By following the instructions within this manual, owners and technicians can effectively maintain the optimal performance and longevity of their outboard engine.