This comprehensive repair manual covers Mercury Outboard Motors & Jets manufactured between 1997 and 2003, specifically focusing on 2-stroke models. It details various horsepower ratings, including 75 HP, 90 HP, 100 HP, 115 HP, and 125 HP, as well as the 65 JET and 80 JET models. These engines are known for their robust construction and reliable performance, making them a popular choice for a wide range of marine applications. This English-language repair manual provides detailed instructions for maintenance, troubleshooting, and repair. It covers essential areas such as routine maintenance, engine specifications, lubrication and cooling systems, fuel systems, electrical systems, and transmission components. With clear guidance on diagnostics, component replacement, and common issue resolution, this manual serves as an indispensable resource for owners, technicians, and mechanics seeking to maintain and restore their Mercury outboard engines to optimal operating condition.