This manual covers the Johnson Evinrude 25 Hp outboard motor produced between the model years 1956 and 1970. These engines are recognized for their robust construction and reliable performance, making them a trusted choice for a variety of marine applications. Designed for durability and efficiency, the Johnson Evinrude 25 Hp represents a significant achievement in outboard motor engineering, offering dependable power for recreational boating and professional use. The purpose of this comprehensive service manual is to provide detailed information for the maintenance, repair, and troubleshooting of your Johnson Evinrude 25 Hp outboard motor. It includes essential technical specifications, step-by-step repair procedures, diagnostic guidance, and safety precautions. By following the instructions outlined within these pages, owners, technicians, and mechanics can ensure their engine operates at peak performance and longevity.