Yamaha EF2000iS Inverter Generator Review


Looking for the best inverter generator?

The Yamaha EF2000iS Inverter Generator got almost everything you want in a single generator.

What’s the catch?

Most reliable…Safest…Quietest… Highly portable

We have to breakdown each one of these key features of the Yamaha EF2000iS Inverter Generator as you read on…

Outstanding Fuel Efficiency

These are the qualities that makes it ideal for the widest variety of applications such as for camping, covering sports events, boating, RVing, home backup, running your power tools and many more.

“The most impressive about this unit is how quiet it is, even at full engine speed you can have a normal conversation without raising your voice or talk to a cell phone without undue distractions. On top of all the goodness in it, you can safely power computers, charge cell phones, iPods, run a TV, DVD player and plenty of other things.”

>>Click Here to check the price and discover what people are saying about the Yamaha EF2000iS Inverter Generator Review.

Most Reliable Engine

In times of disaster failure is definitely not an option, right?

This is the reason why the Yamaha EF2000iS Inverter Generator is made of the most reliable engine that you can depend on anytime anywhere.

It is built with high performance Yamaha 79cc OHV 4-Stroke engine which is capable of delivering 2,000w of peak power or 1,600w of continuous power. It features an overload protection with circuit breaker to keep your appliances safe and the generator as well.

State Of The Art Technology

The Yamaha EF2000iS Inverter Generator has more to offer with its state of the art technology.

It is designed with computer controlled circuitry that perfectly synchronizes the engine speed to its actual load. A lighter load means less engine speed thus, delivering the equivalent power required. Eventually the noise level created further reduces while boosting its fuel efficiency.

Safe for Your Sensitive Appliances

I think you agree with me if I say, no one wants to ruin their thousands of worth of appliances with conventional generator, right?

Thankfully, the Yamaha EF2000iS Inverter Generator delivers the cleanest sinusoidal output waveform to safely power up your sensitive appliances. Rest assured, you have total peace of mind whenever you plug in your sensitive electronic devices.

Outstanding Fuel Efficiency

Want to save fuel?

Fuel efficiency is one of the main factors in choosing the best inverter generator. The generator is said to be fuel efficient if it uses less fuel for longer period of time.

Luckily, the Yamaha EF2000iS Inverter Generator is designed to provide outstanding fuel efficiency compare to any other generator available in the market today. A single full tank with only 1.1gallon of gas can last up to 10.5 hours of continuous power provided with quarter loads in it.

Though, it may vary depending on your load. As a rule of thumb, heavier load can lessen its run time while lighter load extends it. As a result, you have more time to enjoy during camping or you can work overtime when finishing your projects. You don’t need to worry how long the power shortage will last the next time you hit by a hurricane.

Extremely Quiet

Hate the noise?

Traditional generator produces very irritating loud noise. Not with the inverters like the Yamaha EF2000iS Inverter Generator.

With its noise reduction feature, it further reduces its noise to provide extremely quiet operations when it runs. This makes it possible with a special sound-blocking design that helps dampen the noise even during heavy operation.

In addition to that is the inclusion of a super-quiet muffler and vibration isolating feet that minimize the noise level.

The noise level is unbelievably lowered to only 51.5dBA with 500w load. You can now have a nice conversation with your friends and family nearby the generator.

Highly Portable

Need to bring the generator anywhere?

As I stated earlier, the Yamaha EF2000iS Inverter Generator is the most portable generator you can have. This is probably the lightest in its class that weights only 44 pounds enough to carry by a single person, it provides a convenient handle for you to easy move along anywhere you may wish to. It has an almost the same size of a briefcase that can be fitted in anyplace when you need to transport it, even if you’re riding on a motorcycle.

Easy Start

If you hate the pain with a hundred pull before you can start the generator, you’ll be glad with it.

Its super easy start feature will surely put smile on you. The Yamaha EF2000iS Inverter Generator comes with an auto-decompression system that will start it in just a single pull. Even at cold weather it increase its auto warm-up ability so that you don’t need to wait it will instantly provides power for your appliances.

More Features Ahead

It brings more features that makes it super easy to use, handy and safe as well.

Fuel Gauge

To keep track on the fuel level there’s a fuel gauge feature allows you to keep track on it to avoid fuel draining.

Oil Watch

The oil watch warning system continually monitors the engine’s oil level. It warns you whenever there’s an insufficient oil supply or change oil is needed. Insufficient oil supply will damage the engine due to overheating.

Overload Protection

The Yamaha EF2000iS Inverter Generator also features an overload protection circuitry. Whenever an overload occur the circuit breaker will automatically shut off the generator to prevent it from damaging while keeping your appliances safe all the time.

Easy Access Panel

I guess no one wants to operate a complicated panel in times of emergency, right?

The Yamaha EF2000iS Inverter Generator provides the most convenient easy access panel for you to start using it in no time.

Located on the center of the panel is the pull start. On top of it are the three LED indicators for oil, AC output and overload. Below it is the economy mode switch and the stop/on switch. You can also notice the on/off/fuel switch and the twin tech connector. The unit provides two 120v AC outlets to accommodate your regular home appliances. Finishing it off with a 12v DC outlet and the DC protector switch that allows you to charge your batteries.

Need A Double Power?

In case you need a double power rating the Yamaha EF2000iS Inverter Generator features a TwinTech technology to make it possible. You can now connect two identical Yamaha EF2000iS Inverter Generator using the TwinTech accessory cable. The total output surge power is 4,000 watts or 3,600 watts effective power.

CARB And EPA Compliant

The Yamaha EF2000iS Inverter Generator can be sold and safe to use in all states of America due to its CARB Compliant. It passed the strict California Air Resources Board (CARB) because it doesn’t emit any harmful fumes that may endanger human health. It is also safe to use in any National park due to its Environmental Protection Agency (EPA) compliance.

Yamaha EF2000iS Inverter Generator Review

The Yamaha EF2000iS Inverter Generator receives an outstanding appraisal of 4.3/5 stars that proves its great performance. The following reviews are written by customers who actually bought and use it in real world applications.

Power Handling

“I got this mainly for charging our boat’s batteries at anchor but I also wanted the ability to run power tools.”

“I’ve had two EF Yamaha 2000is generators since the beginning of Sept, 2010 and have mainly used them for camping. The first workout for both of these units was tailgating. I also have a cord that connects the 2 of them to make 4000 watts, more than enough to power your camper A/C (13,000-15,000btu) and everything else in the RV.”

Quality Build

“This is a very high quality unit, nicely designed. I chose it over the Honda Eu2000i because it has a fuel gauge and is a hair lighter (2 pounds), and liked the styling better.”

Noise Level

“The most impressive thing about this unit is how quiet it is. Even at full engine speed you can stand about 6 feet away and have a normal conversation without raising your voice, or talk on a cell phone without undue distraction.”

“It is MUCH quieter than my boat’s inboard diesel engine.”


“It features an “eco” setting which tapers down the engine throttle and noise when full load isn’t required.”


“This little gem arrived to me in perfect condition. Kudos to Amazon for their quick delivery time.”

Ease Of Use

“The pull cord is very easy. Just practice a couple of times. You will love this generator, I promise. I will use it for my travel trailer for camping/fishing during the colder months.”

Bottom Line

“Please don’t settle for “cheap”. Get a better quality inverter-generator unit that’s quieter so you minimize noise pollution in get-away places.”

“It starts up really easy, mine started on the first pull right off the box. I give the Yamaha EF2000iS five stars hands down for the price and performance. I’m really happy I didn’t go ahead and go with a knock off lesser brand. It was well worth the extra money for something that’s going to be reliable and dependable.”>>Click Here to read more customers’ review.


The Yamaha EF2000iS is undeniably an outstanding generator from features, performance, fuel efficient, quiet, durable, highly portable and very reliable. However, it doesn’t come with oil so that you have to purchase it separately. The price it offers is very reasonable making it truly valuable to own.

If you’re thinking of buying medium sized inverter generator that meets the following qualities, the Yamaha EF2000iS Inverter Generator is definitely a wise choice. After all, there’s no sense in paying less for something that just going to be junk afterwards. >>Click Her to get it at its Lowest Price!