This service repair manual covers Mercury Mariner models, specifically series 65, 70, 75, 80, 90, 100, 115, and 125. These two-stroke engines are engineered for reliable performance. While specific production years are not detailed, the Mariner line is known for its robust construction and dependable operation, making it a suitable choice for a variety of applications. This manual provides comprehensive guidance for maintaining and repairing your Mercury Mariner. It includes essential information such as detailed procedures, technical specifications, and troubleshooting steps, all enhanced with clear illustrations, photos, and diagrams. The English-language manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of their vessel's engine.