This manual covers the Yamaha 175TLRR, a 175 horsepower gasoline outboard motor produced in 1993. Engineered for reliability and performance, this model represents a significant advancement in marine propulsion technology for its era. Its robust construction and efficient design make it suitable for a wide range of boating applications, ensuring dependable operation for recreational and professional use alike. The purpose of this Factory Service Manual is to provide comprehensive guidance for the service, repair, and maintenance of the Yamaha 175TLRR outboard motor. It details procedures for General Information, Periodic Inspection and Adjustments, Fuel System, Power Unit, Lower Unit, Bracket Unit, and the Electrical System. With step-by-step instructions, detailed wiring and circuit diagrams, illustrations, photos, and exploded views, this manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of the unit.