Review: Atima AY2000i 2000W Portable Generator – PROS & CONS is an independent review business. I am not affiliated with any manufacturers and do not accept paid reviews. When you buy through my links, I may earn a commission which helps me purchase more generators for testing. - Scott Krager

Last Updated on October 16, 2022 by Manager Access

Atima AY2000i
Are you looking for a portable generator that is both quiet and reliable?

There are a number of nice generators on the market today that fit that description but most of them are rather expensive.

The Atima AY2000i is a reasonably priced and remarkably quiet generator that can hold its own against the competition.

Powered by a reliable Yamaha engine, this lightweight and ergonomic generator earned the Red Star Design Award.

There are a few generators that hog all the attention and glory, like the Honda EU2000i (or its update, the EU2200i).

About this Generator: Features

ATIMA AY2000I gas generator on grass

The Atima AY2000i is a generator that easily competes with the Honda and it does so at a much lower price.

Don’t believe it? Just check out the features this Atima generator has to offer.

  • Running Watts: 1600W
  • Max Watts: 2000W
  • DC Output: 12V/8A
  • Voltage: 120V
  • Frequency: 60Hz
  • Noise level: 52 dBA at 7 meters @ 1/4 load
  • Engine: Single-cylinder, air-cooled, 4-stroke, gasoline engine
  • Starter: Recoil
  • Fuel Tank Capacity: 1 Gallon
  • Fuel type: Unleaded Gasoline
  • Oil Capacity: 0.1 Gallon
  • Oil Type: SAE 10W-30
  • Size (L x W x H): 20.88 x 12.21 x 19.31 inches
  • Weight: 47.41lbs
  • Outlets: 3 120V AC output sockets, 2 12V DC output socket
  • Electrical Circuit Breaker: Yes
  • Low Oil Alarm: Yes
  • Smart Throttle: Yes
  • Overload Protection: Yes

Inverter Technology

We don’t seem to go anywhere these days without our cadre of tech gadgets. Whether you need a generator as a backup power supply or for use when camping or tailgating or on a worksite, you probably will need to charge your phone or tablet, or laptop.

The generator of yesterday could mean total disaster for these devices.

Inverter generators like the AY2000i, on the other hand, keep all sensitive electronics safe.

There’s no ebb or flow and no big surges, just a constant flow of clean energy.


A nice feature of this generator is that it comes with a little toolkit with everything you need.

This includes a screwdriver and a wrench.

It even has a nice little storage bag to keep these tools in.

The AY2000i also comes with a small bottle with the exact amount of oil you need.

There is no oil in the tank out of the box so it is very important to fill it up with this oil before trying to turn the generator on (read my post about breaking in your generator).

One tool that isn’t included with the generator is a 20 to 30A adapter for use in an RV.

It would be nice if this was RV-ready, to begin with, but an adapter like this is relatively affordable and it’s easy to put in the AY2000i.

My Tip: Magnetic Oil Dipstick

Another tool that is not included that really should be is Atima’s magnetic oil dipstick.

This handy gadget can actually attract and capture the little metal fragments that can break off of the engine.

Clearing out these metal fragments can ultimately extend the life of the engine so it’s a great tool to have.

Atima makes these for a variety of generators including other brands.

It’s too bad it doesn’t come standard with Atima generators but luckily, it’s really reasonably priced.

Ergonomic & Lightweight

Man carrying a portable generator on a grass field

This is a perfect generator for taking with you on the road for camping and other activities. The design is fairly compact and lightweight.

At around 50 pounds when it has a full tank of gas, it’s easy for most adults to carry.

It has a simple handle on the top and an ergonomic design overall.


To expand your power, this unit is parallel-ready.

You would need to purchase the connecting cables, but you can run this unit in parallel with any other unit in the Atima family.

Unlike some other generators, it doesn’t have to be the exact same model.

You could pair the AY2000i with the AY3000i, for example.

Noise Level: How Loud Does It Get?

A loud generator can make you miserable pretty quickly. Luckily, more and more generators today are remarkably quiet.

The Atima AY2000 isn’t the very quietest generator on the market today but it is definitely one of the quietest.

At a quarter load, it’s only 52 dBA. 

According to Yale Environmental Health & Safety, that’s quieter than a typical household refrigerator.

Obviously, the generator will be louder when running a heavier load, but it should never be as loud as a vacuum cleaner.

You will be able to hold a normal conversation in the general vicinity of the generator without any problem.

It will be at its absolute quietest when you engage the Smart Throttle.

The quiet noise level of this generator makes it a good choice for things like camping and tailgating, where you don’t want to disturb others.

Gas Consumption & Tank Capacity

The fuel tank on this generator holds 1 gallon of unleaded gasoline.

The Yamaha engine is known for its fuel efficiency so one gallon will last you quite a while.

At a quarter load, you can expect about 10 hours of runtime on a single tank.

At a half load, a tank of gas will last just under 8 hours.

Service, Manual & Warranty

As with any generator, regular service is going to be key to it lasting a long time and continuing to work at a high level.

The manual lays out in detail the necessary maintenance. It also walks you through how to perform these services.

In the event that you need additional help or your unit no longer seems to be working, you’ll need to call Atima’s customer service hotline at 1 (844) 428-6922 and they will help you schedule an inspection and repair with a qualified technician.

The Atima AY2000i does come with a 2-year limited warranty. Parts and labor are covered for the first year while the second year covers parts only.

As always, the warranty will be voided if you haven’t followed the regular maintenance laid out in the manual or if you’ve modified or repaired the generator yourself without using a qualified technician.

Online Customer Reviews and Ratings

REVIEW: Atima AY2000i 2000 Watt Portable Inverter Generator for RV Camping

The overall consensus from buyers seems to be that this generator is every bit as good as the popular Honda EU2000i but at a more affordable price.

One buyer ran it head to head against a Honda and found that while it was just a bit louder, it had a longer runtime and worked just as well.

The fact that it was so much more affordable than Honda made this buyer a very satisfied customer.

Another Amazon reviewer praises the generator’s quality and says that the low price is just “icing on the cake.”

Other points of praise from buyers are the quiet operation, the ergonomic design, and the long runtime.

In a review on YouTube, Sean of Long Long Honeymoon shows that the AY2000i has really incredible surge power capability.

He points out that it can be a great generator for RV use but that you would have to purchase a 30A adapter separately.

A few reviewers have complained about it overloading easily despite evidence from Sean and others that it can handle a really high load.

Potential Problems & Known Issues

The biggest potential problems with this generator are the same ones you’ll find with any generator.

More often than not, these issues come about because regular maintenance has not been followed.

It’s very important to follow the service schedule described in the manual.

Potential issues include the generator not starting up or running okay but not actually powering any devices.

When issues like this occur, there is an easy-to-follow troubleshooting guide in the manual.

This will walk you through tasks like checking the spark plug.

In most cases, the troubleshooting guide will solve your problem.

There are no known issues with this generator, as of this writing.

It is powered by a Yamaha engine and these are known for being strong and consistent performers.

Review Summary: Should You Buy The AY2000I Generator?

IMHO – In My Humble Opinion
If you’re on a budget and you want a top-quality generator, the Atima AY2000i is a very good choice for you.
It holds its own in comparison to other popular models on the market.

You’ll get some peace of mind because of its very decent warranty.

The only potential drawback with this generator is the somewhat unknown quality of its customer service.

Because this is designed in Japan and made in China, there is the possibility that the non-USA customer service might be somewhat challenging to work with.

That said, the generator is solidly constructed. The most important aspect of its operation is the Yamaha-made engine which is something you can definitely trust.

This generator provides a lot of clean power and it is very quiet so it’s a good generator for camping, tailgating, and using on remote work sites.

For a home backup power supply, you might be better served by a generator that offers a higher wattage but it could definitely power at least part of your home if need be.

Does this generator sound like a good fit for you? It certainly offers some solid competition for Honda and other leading brands (click here to read my top 10 portable generators comparison). It’s quiet and supplies clean and stable power. It also offers a number of useful features. Do you have any experience with this generator? What did you think? Feel free to ask any questions you might have about the Atima AY2000i 2000-watt generator in the comments.

Atima AY2000I






Ease of Use



  • Trusted Yamaha Engine
  • Affordable
  • Ease of use
  • Great value
  • USB Port


  • Need an RV Adapter for RVs
  • Made in China
  • Not the best customer support

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