This document pertains to the 1988 Yamaha 175ETLG, an outboard motor designed for marine propulsion. Yamaha is renowned for its commitment to engineering excellence, delivering reliable and high-performance products. The 175ETLG embodies this dedication, offering a robust gasoline-powered outboard engine with an outboard drive system, built to meet the demands of aquatic environments. Its design prioritizes durability and efficiency, making it a dependable choice for a variety of marine applications. This Factory Service Manual, written in English, provides comprehensive guidance for the maintenance and repair of the 1988 Yamaha 175ETLG outboard motor. It covers essential areas including general information, periodic inspections and adjustments, fuel system, power unit, lower unit, bracket unit, and the electrical system. The manual also includes detailed troubleshooting procedures, diagnostics, wiring diagrams, circuit diagrams, illustrations, photos, exploded views, and step-by-step instructions. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their Yamaha outboard motor.