This manual covers the Yamaha 60C, 70C, and 90C Series Outboard Motors, including specific models such as 60FETO, 70BETO, 90AETO, 60TR, 70TR, 90TR, 60TLRD, 70TLRD, and 90TLRD. These robust outboard motors are engineered for reliability and performance, offering horsepower options of 60 HP, 70 HP, and 90 HP. Designed for a variety of marine applications, these engines represent Yamaha's commitment to quality and advanced marine propulsion technology. This comprehensive Factory Service/Repair/Workshop Manual provides detailed information for the maintenance, service, diagnosis, and repair of your Yamaha outboard motor. It includes step-by-step instructions, highly detailed exploded diagrams, and coverage of essential systems such as the fuel and electrical systems. This manual is an indispensable resource for owners, mechanics, and technicians, ensuring the longevity and optimal performance of your 60C, 70C, and 90C Series Yamaha outboard.