2014 Yamaha Power EF1000iS

2021 Yamaha Power Generator EF1000iS

Quiet, fuel efficient, and power clean enough to run sensitive electronic equipment all in a portable 28-lb package.

Features may include:

• The EF1000iS weighs in at 27.9 pounds, making it extremely portable.

• Noise Block is Yamaha's acoustically engineered sound reduction system which helps make the EF1000iS among the quietest portable generator in its class. (47 dBA to 57 dBA – ¼ rated to rated load).

• Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems.

• The EF1000iS features Smart Throttle, a load sensing rpm control that allows greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load. It will run up to 12 hours at ¼ rated load on a tank of gas.

• The Yamaha EF1000iS inverter generator supplies clean, high quality power. The EF1000iS – with its inverter system – features Pulse Width Modulation (PWM) so voltage stability is within ± 1%, and frequency stability is ± 0.1 HZ. Its pure sine wave is as clean as or cleaner than public utilities power.

• The Auto Warm-up feature automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups.

• Yamaha's Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind..