This manual covers the Mercury Mariner 80 HP Jet Drive 2-Stroke Outboard Motor. Engineered for reliability and performance, this water-cooled unit features a CD ignition and electric start system, designed to provide efficient propulsion. Its jet drive system offers a unique approach to power delivery, suitable for various marine applications. This service repair manual provides comprehensive information to ensure the optimal functioning of your Mercury Mariner outboard motor. The purpose of this English-language service repair manual is to guide owners, technicians, and mechanics through the maintenance, repair, and troubleshooting of the Mercury Mariner 80 HP Jet Drive. It details essential procedures, technical specifications, and recommended service intervals, including information on fuel type and oil recommendations. By following the guidelines within this manual, users can effectively maintain the longevity and performance of their outboard motor.