The Yamaha EF1000 is a portable generator engineered for reliable power generation in various applications. Built by Yamaha Motor Corporation, this unit offers a rated and maximum output of 1000 watts, operating at 120V and 60Hz. It features a 4-stroke, OHC, forced air-cooled engine with a displacement of 72cc, designed for efficiency and durability. With a fuel capacity of 2.7 liters of unleaded gasoline, the EF1000 provides up to 10.5 hours of continuous operation at a quarter load, making it suitable for recreational use, job sites, or emergency backup power. Its compact dimensions and dry weight of 13 kg contribute to its portability, while a noise level of 51 dB at 7 meters ensures quiet operation.

This Service Repair Manual provides comprehensive guidance for maintaining and repairing the Yamaha EF1000 portable generator. It covers essential information including detailed maintenance procedures, troubleshooting steps, and technical specifications such as oil type and capacity, engine details, and operational parameters. The manual is designed to assist owners, technicians, and mechanics in ensuring the optimal performance and longevity of their generator. With a click-able index for easy navigation, this manual serves as an indispensable resource for all service-related needs.