The Yamaha 4 MSHQ Outboard, produced in 1992, is a 2-stroke, water-cooled outboard motor delivering 4 horsepower. Featuring a 70cc displacement, carburetor fuel delivery, and CDI ignition, this model is designed for reliable performance on smaller watercraft. Its compact size, with a short shaft length and an approximate weight of 45 lbs, makes it suitable for various boating applications. The tiller handle steering and manual tilt trim system offer straightforward operation, while the typical aluminum propeller ensures efficient propulsion through its Forward, Neutral, and Reverse gear system. This Service Repair Maintenance Manual provides comprehensive guidance for the Yamaha 4 MSHQ Outboard. It covers essential maintenance procedures, including recommended lubrication with Yamaha 2M-SF or equivalent 2-stroke oil at a 50:1 ratio, spark plug specifications, and gear oil requirements. The manual includes detailed technical specifications, exploded diagrams for easy part identification, and troubleshooting information. This resource is invaluable for owners, mechanics, and technicians seeking to maintain, repair, and ensure the optimal performance and longevity of their 1992 Yamaha 4 MSHQ Outboard motor.