Ryobi 4000-Watt Inverter Generator Review: The Best For Outdoor Fun


Ryobi has been well known in the power tools market as a leader in manufacturing and marketing quality power tools since 1943. Their Ryobi 4000 -watt inverter generator is one of their top-selling products.

The Ryobi 4000 -watt inverter generator features powerful performance, advanced features, and contemporary styling.

This inverter generator comes with many safety features, is small in size, and is built with a powerful engine that can produce up to 4000 watts of power. It comes with a 3-year warranty, which speaks volumes about its reliability and durability.

Read the following article to learn more about the Ryobi 4000 -watt Inverter Generator.

Why You Should Buy The Ryobi 4000-Watt Inverter Generator

  1. RV ready

The Ryobi 4000-Watt Inverter Generator is relatively quiet, and it runs on gasoline. It can run at 4000 watts or 3400 watts, making it ideal for running your air conditioner and other items in your RV. It has an RV-ready 120V 30A TT-30R Outlet too.

  1. Affordable

This generator is affordable and comes with tremendous power output for generators of its class.

  1. Lightweight and portable

It is a convenient unit that you can use anywhere to provide power. You can carry the generator along easily, being extremely lightweight. Moreover, it also occupies less space due to its compact design and has an easy pull handle for quick transport.

  1. Fuel efficient

The Ryobi 4000 -watt inverter generator is fuel-efficient and has 0.28GPH at 50%load. It consumes less fuel as compared to any ordinary generator. It has an automatic idle-down technology that shutdowns usage when there is little to no load.

  1. Detects Carbon Monoxide

A CO gas sensor automatically shuts down the generator if the generator emits poisonous gas at hazardous levels.

  1. Pleasing Long Runtime

This Ryobi generator has a run time of 12 hours at half load, which means it can power most appliances or tools for a long time without being refueled.

Who Should Buy The Ryobi 4000-Watt Inverter Generator

  • It’s perfect for RV travelers and nomads
  • It is ideal for boating
  • You can use it for tailgating and camping
  • You can also use it in sporting activities and outdoor festivals
  • Homeowners who need backup power for small appliances and electronics


CO Detect Shutdown Sensor

CO Detect Shutdown Sensor feature is one of the most innovative features in this model because it helps prevent exposure to toxic Carbon Monoxide poisoning.

The feature detects and shuts down the generator if unburned fuel is present in the exhaust gases. It will shut down the generator if it detects CO gas in the air. This safety feature is ideal for anyone with this generator in their garage or inside the house.

In addition to using this feature to protect you from carbon monoxide poisoning, it may also save your life in an emergency by providing an early warning of any dangerous gases in the air; if there were ever a gas leak.

Idle-Down Technology

Idle-down technology is a clever way for Ryobi to solve a problem that most of us know all too well.

We can't always control how much electricity we use, and when we get home from work, we don't want to turn the generator on and off every time we need to power something.

This is where idle-down technology comes into play. With idle-down technology, it’s as simple as flipping a switch. The generator senses when you’re using less power than you had been when there is no load on the generator, and automatically optimizes its output.

Idle-down generators save fuel during low loads and allow users to adjust the load from the remote-control panel.

Low Oil Shutdown

Ryobi 4000-Watt Inverter Generator comes with a feature of low oil shutdown that protects the engine from damage. If the oil level exceeds the minimum mark, the generator will stop working and flash a warning light to alert you.

You can turn the generator on again only after adding more oil. This is useful when using the generator for an emergency and may not check the generator regularly.

Overload Protection

The Ryobi 4000-Watt Inverter Generator comes with an overload protection feature that helps to protect the generator's internal components. It shuts down automatically if the circuit breaker detects an overload of current.

This feature will automatically shut down the generator if it receives too much load or is overloaded by too many devices plugged into it. This feature will turn the generator off entirely until you turn off all devices plugged into it.

The circuit breaker also allows to reset and restart of the generator.

It is important to note that this feature is used only as a safety precaution, and it is not advised to overload your generator. Some generators limit the amount of wattage they can produce, usually on their specification sheet.

Spark Arrestor

A spark arrester is a feature of the Ryobi 4000-Watt Inverter Generator, which helps to reduce the chances of a fire in the environment. It's also called  "Fireproof" in this generator. It's helpful in a natural environment and human life.

It's essential because it can protect you from fire accidents outdoors, like camping, fishing, and cooking BBQ when using the Ryobi 4000-Watt Inverter Generator.

It also protects the environment from pollution due to burning fossil fuels.

RV Ready 120V 30A TT-30R Outlet

For long-term travel, you will need to be able to plug your RV into site power. The generator has three AC outlets on the front panel, and it comes with two 120-volt 20-amp twist-lock outlets and one 120-volt 30-amp TT twist-lock outlet for convenient usage.

The TT-30R RV Ready Plug adapter lets you plug your TT-30R generator into a 120-volt, 30-amp, grounded receptacle and safely power your RV.

UL certified to ANSI/UL 2201

The RY4000 is UL certified to ANSI/UL 2201, a stringent safety standard that protects the users from electrical shock and other hazards such as Carbon Monoxide emissions.

CARB Compliance

The Ryobi inverter generator line is compliant with CARB (California Air Resource Board). They established this requirement to help protect the air quality of the state of California.

The CARB regulations state that a CARB-compliant generator contains less than 50 parts per million (ppm) of non-methane hydrocarbons. For example, a generator that produces 4,000 watts will not create more than 200 grams of hydrocarbon emissions per hour.

Advanced Inverter technology

The Ryobi 4000-Watt generator's inverter technology gives you more power in a compact, quiet design. The inverter technology in the generator lights up energy-hungry appliances for an uninterrupted clean sine wave power supply.

With a harmonic distortion of less than 3%, you can safely power your sensitive appliances such as Televisions and laptops without experiencing any flickering or humming.

Flat-free wheels

The flat-free wheels of the Ryobi 4000-watt inverter generator make it possible to move the generators over any terrain with ease. There is no need to worry about getting stuck or damaging the product when maneuvering it out of storage.

It is easy to move anywhere you need it, even if there is an incline.

What Is In The Box

  • Ryobi 4000-Watt Inverter Generator
  • Oil
  • Tool kit
  • Wheel kit

Product Specifications

Brand: Ryobi

Starting Watts:4000W

Running Watts:3400W

Voltage:120V 60Hz

Running Amps:28.3A

Peak Amps:33.3A

Engine Size:212cc OHV 4-Stroke Engine

Fuel Type: Gasoline

Tank Capacity:3.2 Gallons

Runtime:12 hours @ ½ load

Start Type: Recoil

Noise Level:72dBA

Dimension:25x21.75x15.88 inches


THD: less than 3%

Warranty: 3 years

Outlets: 2x duplex 120volt 20A

1x 120volt 30A TT-30R RV


  1. Has no electric start

The generator has been designed to start by pulling the recoil starter. This is a disadvantage of the Ryobi 4000- watt inverter generator because people want the convenience to start up their devices.

  1. It's not parallel ready.

That means you can’t use two generators at once to power your whole house or your RV.

  1. Noisy

It’s a bit on the noisy side, which may disturb some users.

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Q: What is the ideal oil for this generator?

A: The ideal oil type is SAE 10W-30

Q: Is there a parallel unit that is compatible with this generator?

A: No, this unit is not parallel ready and has no parallel ports

Q: What is the spark plug gap?

A: The gap is 0.024-0.028 inches

Q: Does it provide 220volts?

A: No, this generator has a voltage of 120V

Q: Will it run a refrigerator and a freezer?

A: Yes, this generator powers small refrigerators and small freezers alike.


Final Verdict

So, there you have it. Ryobi 4000- watt inverter generator is a powerful performer overall. It offers plenty of power for any job, and the ability to run in idle-down mode makes it incredibly economical.

It's an excellent choice for someone who plans to use it regularly, such as home power outages or camping trips.

This Ryobi 4000-Watt Inverter Generator review should help you decide whether or not this is the right generator for your needs. Overall, we think this is a great unit that provides excellent value for the money.

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