Yamaha EF2000iS Generator: Why It’s One Of The Best

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yamaha 2000 campingIf you have ever experienced a power outage in your home for an extended period of time or found yourself needing electricity in a remote location, you can appreciate the benefits of a generator. The Yamaha EF2000iS is a unique gas powered generator with pretty amazing features.

We will describe the features that make this generator stand out. We’ll take a look at what you can do with it and how easy it is to transport, maintain and operate. We’ll also consider how quiet it is, how much space it takes up, fuel efficiency, and how long it will run on a full tank. Finally, you may need similar features but either more or less power depending on how you will use it. We’ll take a look at some other models in the Yamaha EF series and other competitor models too.

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What Can You Power With The Yamaha EF2000iS?

Using inverter technology, the Yamaha EF2000iS provides very clean power, very similar to the power coming into your home. You can read about inverters here. This makes it ideal for powering all kinds of sensitive electronics, such as computers, gaming devices, phones, etc. With a rated output of 1600 watts, and 2000 watts max, this generator can also power many tools and appliances. Just to give you an idea, many electric space heaters, smaller cooling units, refrigerators and small to medium sized microwave ovens run on less than 1600 watts.

Its portable design and power output make it perfect, not only for outdoor activities like camping and running outdoor equipment, but also for powering appliances in your home during a power outage. You would not need to worry about your basement flooding when the sump pump fails or your food spoiling when the refrigerator goes out.

The generator also has 12 volt DC output and comes with battery charging cables, perfect for when your car battery needs a jump start.

How Easy Is It To Operate and Maintain?

Starting the generator is easy, usually requiring only a few pulls on the recoil cord.

It has a simple to use control panel. The fuel gauge, a fairly unique feature for this class of portable generators, is also very handy. This generator even has a warning system to tell you that the oil level is too low. The generator will not start or continue running if the oil level is low. Finally, it has an overload breaker and will shut down under overload conditions to prevent damage.

If you have two of these generators, they can be connected using special cables to run in parallel and provide twice the power!

How Portable Is It?

To be able to take a quiet, efficient power source to remote locations seems amazing to me. This generator is extremely small and compact for the power output it can produce. Weighing about 46 lb with a full tank, it can pretty easily be carried by one person. Its comfortable grip handle also makes it easy for one person to carry.

Taking up about 2.2 cubic feet, it is compact and easy to store. Dimensions are: 19.3 inches long, 11 inches wide, 17.9 inches high.

How Fuel Efficient Is It?

Another great feature of the Yamaha EF2000iS is its fuel efficiency. It can run up to 10.5 hours on a full tank (1.1 gallons) at a quarter load. Such efficiency is made possible by its Smart Throttle system, which adjusts engine speed according to the load.

How Quiet and Dependable Is It?

The noise level is extremely low for this size generator. Depending on the load, the noise level ranges between 51.5-61 decibels, which is lower than normal conversation level. This is a greatly desired feature, especially in recreational settings, like camping or an outdoor party, where people are talking and nobody wants to be hearing a loud generator. 

What Kind Of Warranty Or Guarantee Comes With It?

The Yamaha EF2000iS comes with a 3 Year Limited Warranty!

What If I Need More Power?

For a little more power, the Yamaha EF2400iS And EF2800i are excellent upgrades. With a higher current output, they have superior ability to start motors and appliances that require more power on startup. They have all the features of the smaller 2000iS but provide more power, and with larger fuel tanks more hours of continuous operation. Although they are larger and weigh more, the EF2400iS weighing 75 lb and the EF2800i at 68 lb, they are still easily transported.

It’s worth noting that Honda has a 2000 watt inverter, comparable to the Yamaha EF2000iS. It does not, however, have these middle range generators. It jumps from the 2000 watt model to the 3000 watt generator.

Common Accessories For The Yamaha EF2000iS

  • Generator cover – keep it safe from the elements when not in use
  • Funnel with a flexible spout for filling engine oil
  • Power cords to run appliances

Summary Of The Main Features

  • It’s rated for 1600 watts and has a surge capacity of 2000 watts
  • Portable inverter generator providing clean power safe for all your electronic devices
  • CARB compliant, so it can be used in California and all 50 states.
  • Uses Yamaha 79cc OHV 4-stroke air cooled engine
  • Transistor controlled ignition using a recoil rope start
  • Provides one 120V circuit (with 2 receptacles) and a 12V DC circuit
  • You can combine two Yamaha EF2000iS generators to get 3600 watts output
  • 1.1 gallon fuel capacity using gasoline provides up to 8 hours of run time at 50% load and even more with less load due to its Smart throttle system which adjusts the engine speed according to load.
  • Low oil shut off switch protects engine
  • Fuel gauge to monitor fuel levels
  • 51 to 61dB noise level depending on the load – this compares very well against most generators which operate in the 70dB range
  • Compact with dimensions of 19.3 x 11 x 17.9 inches
  • Weighs 44.1 pounds
  • Easy to start and stop
  • Very popular with 90% review ratings above 4 stars
  • 3 year limited warranty

Click here to check the Yamaha EF2000iS at Amazon!

Final Verdict

All equipment having a small internal combustion engine have an EPA rating for Emission Compliance Period. The Yamaha EF2000iS is rated for 500 hours, far above its competitors. In short, this generator is one of the most reliable, fuel efficient and quiet generators for its class. It is the number one rival to the Honda EU2000i, which you can read about here. I don’t think you can go wrong with either one!

While it is more costly than some up front, its longer life span and dependable performance (being able to count on it when you need it) makes it one of the most cost effective in the long run! 

Having said this, you may still be looking for a cheaper alternative in the short term.

Check this review to find other top ranking portable inverter generators with comparable features. 


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13 thoughts on “Yamaha EF2000iS Generator: Why It’s One Of The Best

  1. Pingback: Portable Generators: What Makes Them Quiet?

  2. Suze

    Well, you have given me food for thought here. I had really thought that the Honda 3000, mentioned in another article here, was the best fit for me but I really like the portability of this one. If I remember correctly it’s about 12 or more pounds lighter which would be great for me when I am setting up on my own.

  3. Linda

    The Yamaha EF2000iS Sounds like a very efficient generator. More power and the quieter motor sounds
    great. When we are camping I don’t like a noisy generator. Very informative article.

  4. Maria

    The size of this generator is looking pretty nice compared to our big one. I understand the need for our bigger one, but this is a great small size. Interesting how quiet it is and I was impressed that one can hook a couple together. Nice for camping or outdoor activities!

    1. Admin Post author

      One of the great features of this generator is that you can run two of them in parallel to double the power output. You can buy two of these for the same or maybe even a little less than the cost of the Honda EU3000i and still generate more power and also have more versatility! Thanks for posting.

  5. Mecala

    Thank you for all of the useful information you have shared here. I also have been looking for a compact and easy to handle quiet generator that can serve various purposes. This one by Yamaha seems to have many excellent qualities and apart from that…it’s a good looking little thing!

  6. Ingrid

    Hmm, I am thinking after reading this that, there are are a lot of points that add up to a good reason to opt for quality rather than cheap in generators. I guess if I am actually going to use it I will want the better features this one has to offer. I guess it is just deciding how many watts I want. Thanks!

    1. Admin Post author

      Exactly! Especially if you’re looking to buy a generator for emergency use, the most important consideration is its reliability. The last thing you need is a generator that fails when you need it the most.

  7. Lauren

    That 500 hour lifespan is such a great selling point. In many thunderstorms where the power goes out, we aren’t sure when the power will be turned back on. Having that extremely long lifespan gives me peace of mind that it will take care of our needs.

    1. Admin Post author

      Thanks for posting Lauren. I couldn’t agree more. The reliability and peace of mind you get with this generator is what sold me on it.

  8. Pingback: Honda EU2000i Review - Best Portable Generator

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