This manual covers the Yamaha Outboard Engines from the 1997-2000 Outboard Series, specifically focusing on the 1998 model year. These robust outboard motors, ranging from 115 HP to 200 HP, are known for their reliable performance and are designed for a variety of marine applications. The series includes multiple variants, indicated by designations such as 'X' and 'L', suggesting options for different shaft lengths to suit various boat hulls. Their V6 configuration, coupled with advanced engineering, ensures consistent power delivery and durability for demanding use. The purpose of this Service Repair Manual is to provide comprehensive guidance for the maintenance, repair, and troubleshooting of your Yamaha Outboard Engines. It details essential procedures, technical specifications, and safety guidelines, making it an indispensable resource for owners and technicians alike. With high-quality diagrams and clear, step-by-step instructions, this English language manual empowers Do-It-Yourselfers and professionals to effectively service and maintain their engines, ensuring optimal performance and longevity.