This document pertains to the Mercury Mariner 225 HP outboard engine. Designed for marine applications, this powerful engine delivers 225 horsepower and utilizes a water-cooled system. Its robust construction and reliable performance make it a dependable choice for various boating needs. The engine operates on gasoline and features a remote steering system for precise control. This Factory Service Repair Manual, written in English, provides comprehensive guidance for maintaining and repairing your Mercury Mariner 225 HP outboard. It covers essential areas including routine maintenance schedules, troubleshooting common issues, and detailed technical specifications. With hundreds of pages of information, this manual is an indispensable resource for owners and technicians seeking to ensure optimal performance and longevity of the engine.