This comprehensive repair manual covers Yamaha, Mercury, and Mariner outboard engines manufactured between 1995 and 2004. These 4-stroke engines range in power from 2.5hp to 225hp, encompassing a wide variety of models designed for diverse marine applications. Known for their robust engineering and reliability, these outboards provide dependable performance on the water. This manual is an essential resource for understanding the intricacies of these powerplants, from their basic operation to advanced maintenance procedures. The purpose of this English-language manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of your outboard engine. It includes extensive information on tune-ups, fuel system servicing, electrical and ignition systems, lower unit and gear case repairs, tilt and trim systems, and rewind starters. With detailed pictures and diagrams, this 762-page guide offers factory service and owner manual topics, ensuring that owners, mechanics, and technicians have the necessary knowledge to keep these engines running optimally.