This manual provides comprehensive information about the tune-up and repair of Mercury/Mariner outboard motors with 3-4 cylinders built between 1990 and 1994. It includes step-by-step instructions, diagrams, and specifications for all aspects of maintenance and repair.

Whether you're a professional mechanic or a DIY enthusiast, this manual will help you keep your outboard motor running smoothly. From basic tune-ups to more complex repairs, this manual has everything you need to maintain and repair your Mariner outboard motor.