This manual details the 1998 Yamaha S250 HP outboard motors. These engines are engineered for robust performance and reliability, suitable for a variety of marine applications. Their design emphasizes durability and efficient operation, making them a trusted choice for demanding use on the water.

The purpose of this manual is to serve as a comprehensive reference for mechanics and technicians. It provides clear, easy-to-follow instructions for all disassembly, repair, assembly, and inspection operations. Each section includes exploded diagrams to aid in understanding the correct procedures, ensuring efficient and accurate maintenance and repair of your Yamaha outboard motor.