This Service Repair Manual covers the Mercury Mariner outboard motor, a robust and reliable engine designed for a variety of marine applications. Featuring an inline 4-cylinder, naturally aspirated engine with a displacement of 1.73 liters, this motor delivers a strong 115 horsepower, making it suitable for a wide range of boat sizes and water conditions. Its engineering prioritizes durability and performance, ensuring a consistent and powerful operation on the water. This comprehensive manual provides essential information for maintaining and repairing your Mercury Mariner. It details critical maintenance procedures, including lubrication requirements, service intervals based on operating hours, and specific technical data such as spark plug gap and trim range. With clear instructions and technical specifications, this guide is an invaluable resource for owners, mechanics, and technicians seeking to ensure the longevity and optimal performance of their Mercury Mariner outboard motor.