This comprehensive factory service repair manual provides detailed information for the Mercury Mariner 115 HP 4 Cylinder outboard motor models manufactured between 1988 and 1993. The manual contains everything you need to perform maintenance, troubleshooting, and repairs on your engine. It includes in-depth coverage of all major components, including the powerhead, lower unit, electrical system, fuel system, and more. You will find step-by-step instructions, detailed diagrams, and clear explanations of procedures to help you successfully complete any repair or maintenance task. This manual is an invaluable resource for both professional mechanics and DIY boat owners, ensuring you have the knowledge and tools to keep your Mercury Mariner 115 HP outboard running smoothly for years to come.

The Mercury Mariner 115 HP 4 Cylinder, produced from 1988 to 1993, represents a reliable and robust option for boating enthusiasts seeking a powerful yet manageable outboard motor. This four-cylinder, two-stroke engine boasts a displacement of 115 cubic inches, delivering a peak output of 115 horsepower at 5000 rpm. Its compact size and relatively lightweight design make it suitable for a range of boats, from smaller fishing vessels to larger recreational craft. The Mariner 115 HP features a robust construction with durable components, including a cast-iron powerhead and a robust lower unit. It is known for its smooth running, responsive acceleration, and consistent performance across a wide range of operating conditions.

The Mercury Mariner 115 HP 4 Cylinder was developed during a period when two-stroke outboard motors were at the peak of their popularity. While the engine delivers impressive power, it is important to acknowledge that two-stroke engines are generally less fuel-efficient and produce higher emissions compared to their four-stroke counterparts. However, the Mariner 115 HP compensates by offering a simple design, requiring minimal maintenance and offering a cost-effective solution for those seeking a reliable and powerful outboard motor. This engine is well-regarded for its durability, making it a popular choice among boaters seeking a robust and dependable power source. The factory manual for the 1988-1993 Mariner 115 HP provides comprehensive information on the engine's design, operation, maintenance, and troubleshooting, ensuring owners can maximize its performance and longevity.