This manual covers the Yamaha 70ETLG, a 1988 model outboard motor. This 2-stroke engine features a 1131 cc displacement, producing 70 horsepower across its 3 cylinders. Designed for reliable performance, it incorporates a CDI ignition system and water-cooling for efficient operation. The outboard gearcase transmission offers Forward, Neutral, and Reverse gears with a 2.15:1 ratio. Its long shaft design and approximate weight of 95 kg make it suitable for a range of marine applications. This comprehensive Service Repair Maintenance Factory Professional Manual in English provides essential information for maintaining and repairing your Yamaha 70ETLG. It details critical procedures, technical specifications, and troubleshooting guidance. Key areas include recommended fuel mixtures, spark plug specifications, oil capacity for the gearcase, and general maintenance intervals. This resource is designed to assist owners and technicians in ensuring the longevity and optimal performance of the outboard motor.