The Mercury Mariner 150 HP Pro Max Outboard, produced between 1992 and 2000, represents a robust and reliable engine designed for a variety of marine applications. This powerful outboard motor, available in both right-hand and left-hand rotation, features an oil injection system and a fuel system that evolved over its production run, accommodating both carbureted and fuel injection configurations from 1996 onwards. The Pro Max engine family is engineered for performance and durability, making it a trusted choice for boaters seeking consistent power and efficiency on the water. This comprehensive service, repair, and workshop manual provides essential information for maintaining and troubleshooting your Mercury Mariner 150 HP Pro Max Outboard. It covers all models and engine variants, including Jet Outboards, offering detailed procedures for disassembly, assembly, cleaning, and reinstallation. With hundreds of pages of original, professional-quality content, including wiring diagrams, illustrations, and photos, this manual is an indispensable resource for owners, mechanics, and technicians to ensure optimal performance and longevity of the engine.