Yamaha EF2000iS

The EF2000iS is built around an innovative inverter system, which holds the caliber to deliver higher-quality, cleaner electricity than competing generators. This high end generator produces energy in the form of pure sine waves, which are cleaner and more reliable than most commercial power sources. Powerful, portable, and efficient, the Yamaha EF2000iS Gas-Powered Portable Inverter delivers maximum electrical output without sacrificing portability. Thanks to its innovative inverter system, the generator is able to generate up to 2,000 watts of clean AC power. The EF2000is can run up to 10.5 hours continuously without refueling and uses premium technologies to maximize fuel efficiency. An electrical overload breaker is also included, to prevent generator damage in case of an unexpected overload.

Ergonomic, User-Friendly Design

Weighing at 44 pounds, the Yamaha EF2000iS is ultra-portable and features an easy-to-carry design. It has a convenient, centralized control panel, which allows you to easily access all of the generator’s features at the push of a button.

Smart Technologies for Optimal Fuel Efficiency

The EF2000iS is exceptionally fuel efficient, able to run for up to 10.5 hours without refueling when in Economy mode. Its OHV engine runs reliably and dissolves heat efficiently, allowing for both a long life and optimal fuel consumption.

Features and Specifications

  • 1600 watt rated AC output
  • 2000 watt maximum AC output
  • 3/16.7 amps @ 120V
  • Super-quiet muffler with USFS-approved spark arrestor
  • 5 dBA at 1/4 load
  • Smart Throttle varies engine speed based on load – improves fuel economy and reduces noise
  • Inverter system with Pulse Width Modulation (PWM) control
  • CARB Compliant

Customer Reviews and Scores

At 4.6 out of 5, the Yamaha EF2000iS has a good reputation at the Amazon online store. This feedback score has been provided by as many as 272 customers depending on their experience with the same. For a machine that comes for almost a grand, the score comparatively is a good one.

While evaluating the customer reviews, we have come across a few negative aspects about this product faced by the customers. Like any other machine, the machine fails to start after a few times of use. The valve spring breaks resulting in engine failure- happens with the case of most machines and can be repaired easily. Another noticeable drawback pointed out by the customers is that because the fuel gauge is not accurate -it shows that it’s empty when it’s not, and then quickly goes up to “F” for full, so you have to be careful not to overfill it.

The Yamaha EF2000iS is a powerful piece of portable generator with a number of power packed features to its name. At $989, the generator provided more than can be expected and hence we highly recommend this product with a feedback score of 4.5+.

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