This manual covers the Yamaha 25ELRW outboard motor, manufactured in 1998. Designed for reliable performance and efficient operation, this 25-horsepower gasoline-powered unit represents a significant advancement in marine propulsion technology. Its robust construction and precision engineering ensure durability and optimal functionality for a wide range of boating applications, from recreational fishing to commercial use. Yamaha's commitment to quality is evident in every aspect of this outboard motor, providing users with confidence and dependable power on the water. The purpose of this Factory Service Manual is to provide comprehensive guidance for the repair, maintenance, and diagnostics of the Yamaha 25ELRW outboard motor. It includes detailed information on general procedures, periodic inspections and adjustments, fuel and electrical systems, power unit, lower unit, and bracket unit. With step-by-step instructions, clear illustrations, photos, exploded views, wiring diagrams, and troubleshooting charts, this manual is an essential resource for owners, technicians, and mechanics. Mastering the content within these pages will ensure the longevity and optimal performance of your Yamaha outboard motor.