The Mercury Mariner 150 HP Super Magnum outboard motor, produced between 1992 and 2000, represents a robust and reliable option for a variety of marine applications. This first-generation model features a 2.5-liter (153 cubic inch) V6, 2-stroke engine, delivering a rated 150 horsepower with a full throttle RPM range of 4500-5500. Its engineering is characterized by a carbureted fuel system, CDI ignition, and water cooling, designed for consistent performance. The Autolube oil injection system, with an option for pre-mix, ensures proper lubrication for longevity. This model is built for durability and power, making it a dependable choice for boaters. This Service Repair Manual provides comprehensive guidance for the Mercury Mariner 150 HP Super Magnum outboard motor. It covers essential maintenance procedures, including lubrication, spark plug specifications, and fuel recommendations, alongside detailed troubleshooting steps to address potential issues. Technical specifications for engine components, transmission, and electrical systems are included, along with crucial safety information, such as the operation of the standard lanyard-type kill switch. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, repair, and optimize the performance and lifespan of their Mercury Mariner outboard.