The Mercury Mariner 75 HP and 90 HP 4-Stroke outboards, produced between 2000 and 2005, represent a robust and reliable choice for marine propulsion. These water-cooled, 4-stroke engines are engineered for dependable performance and efficiency, suitable for a variety of boating applications. Their design emphasizes durability and ease of operation, making them a favored option for recreational and professional use alike. This comprehensive Factory Service Repair Manual provides detailed guidance for the maintenance, repair, and troubleshooting of your Mercury Mariner 75 HP and 90 HP 4-Stroke outboard. It covers essential procedures such as lubrication, fuel system maintenance, ignition system servicing, and cooling system upkeep, alongside advanced diagnostics and fault correction. With hundreds of pages of information, including step-by-step instructions, diagrams, and illustrations, this manual is an indispensable resource for ensuring the optimal performance and longevity of your engine.