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Yamaha EF1000iS Review

The Ultra-portable and Reliable Generator

Yamaha EF1000iSAnyone looking for a small and light generator that is easy to carry around and powerful enough for domestic and business use should consider purchasing the Yamaha EF1000iS generator. Weighing in at a mere 27 lbs, it is the lightest generator in its class and delivers a 1000 watt output, making it suitable for campers, travelers, boat owners, homeowners or for use in an emergency situation. Consumers who picked the EF1000iS preferred the quality and reliability offered by the Yamaha brand with almost every Yamaha EF1000iS review extolling this inverter generator for its fuel efficiency, clean energy, low noise-levels and its user-friendly design.


The Yamaha EF1000iS generator has a 50cc, 4-stroke air-cooled engine and runs on unleaded regular gas. Its 0.66 gallon fuel tank has a wide mouth reducing the risk of refill spills and overflows. It is capable of charging 12 volt DC batteries so if you want to use it to charge your auto, RV, marine boat, or aircraft you can do so with the battery charging cables that come included with it. The Yamaha EF1000iS is easy to operate- just fill its tank with gas, add the necessary engine oil and give the starter cable a quick pull to get it started.

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Is the Yamaha EF1000iS Generator right for you?

Here are the benefits of the Yamaha EF1000iS Generator:

  • The biggest benefit of the Yamaha EF1000iS is its compact, lightweight  and ergonomic design that makes it super portable and easy to operate.  Almost anyone can easily load it in and out of a car or boat and the control panel is accessible and simple to operate.
  • The EF1000iS is extremely fuel efficient so you will have big savings on fuel costs. It can run for 12 hours without any need to refuel at a 1/4 load capacity. This is  due to its automatic engine speed readjustment feature and its dual coil alternator that lowers the engine speed and fuel consumption.
  • You will never have to worry about high-noise levels with this generator. It’s molded casing design, glass wool construction and muffler absorb loud sounds so that your Yamaha will run quietly without disturbing the peace of your neighbors or environment.
  • If you are an eco-conscious consumer, you will find that the Yamaha EF1000iS generator fits the eco-friendly bill. It produces pure sine waves to deliver cleaner electricity than if you used commercial power. This also makes it  safe enough to use on delicate appliances, especially those that are built with microcomputers, that would otherwise get damaged by unrefined energy sources.

==>Click here for the Lowest Price on the Yamaha EF1000iS at Amazon<==

What are People saying about the Yamaha EF1000iS Generator?

Yamaha EF1000iS Reviews from people using it:

A quiet, powerful generator for multiple uses

I’ve used the Yamaha EF1000iS with friends while camping and been absolutely amazed. This model has a number of positives about it:

1 . It is really quiet. When there is a small load on the generator it slows down the engine. This not only makes it quiet, it cuts back on fumes, and saves gas. A tank filling can last half a day easily depending on demand.

2 . Clean power-because the alternator is outputting a DC voltage into a sine wave inverter your 110 AC is coming from one of the best sources. Since the inverter tells the throttle how much power it needs, wasted noise and gas are eliminated.

3. Light weight- compared to taking a 5000W generator camping, the small size and light weight are a welcome change.

4 . Very small gasoline consumption-unless you are running the full 1000W all the time you’ll get great mileage.

5. Well built engine- although only 50cc, it has overhead valves and excellent sound isolation.

H.M. – Yamaha EF1000iS Review

(review edited for conciseness. Click here to read the full review)

Excellent Generator

The Yamaha EF1000iS is quiet and it is a very good gas saver. We use our generator for a 250 watt average load. With that load, the economy saver feature on this generator allows its 0.6 gallon tank to last a little over 12 hours!! It is extremely quiet, just slightly louder than that of a good refrigerator.

S. Stewart – Yamaha EF1000iS Review

(review edited for conciseness. Click here to read the full review)

Nice Compact Generator
I love the size of the Yamaha EF1000iS, its perfect for my camper. For getting power where there is none, this generator is going to be just fine.

All in all, a quality piece of equipment. I would recommend this to a friend.

Stephen D. Feist – Yamaha EF1000iS Review
(review edited for conciseness. Click here to read the full review)

Yamaha Portable Generator Features Video


==>Click here for the Lowest Price on the Yamaha EF1000iS at Amazon<==

Here are the reported disadvantages of the Yamaha EF1000iS:

  • Some users found that they couldn’t use multiple appliances at the same time as this overloaded the generator. They discovered that by using one appliance at a time, the Yamaha EF1000iS generator powered much better.
  • Some people didn’t like the sound of the generator when it was too close to them, but they solved this problem by using a long extension cord to locate the generator further away for a quieter experience.

What has your experience been with the Yamaha EF1000iS? Leave your Comments and rating below.

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Yamaha EF1000iS4.5BarrysReviewBlog2011-08-15 02:14:45Yamaha EF1000iS Review
The Ultra-portable and Reliable Generator
Anyone looking for a small and light generator that is easy to carry around and po…