4000 Watt Inverter Generator with CO DETECT

Model: #RYi4022X

4.6 | 311 Reviews
  • UL certified to ANSI/UL2201 as a low CO portable generator
  • Includes CO Detect shutdown sensor for added safety
  • Operates with greater fuel efficiency and less noise

the perfect solution for any scenario


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This product is covered by a 3-year limited warranty.

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Running Watts
Starting Watts
Engine Size
Fuel Tank Size
3.2 Gallons
Run Time at 50% Load
12+ Hours
(4) 120V 20A & (1) 120V 30A TT-30R RV
85 lb.
3 Year



4000 Watt Inverter Generator with CO DETECT
4000 Watt Inverter Generator with CO DETECT is rated 4.6 out of 5 by 310.
Rated 5 out of 5 by from Easy to Start Haven't had a chance to use it yet but starts and runs fine. Seems to be fairly quite once you put a load on it.
Date published: 2023-01-31
Rated 5 out of 5 by from easy start, quiet Started on 2nd pull the first time I fired it up, now starts on 1st pull. Quieter than expected. Happy to have a way to save our food in a power outage. Thanks Ryobi. Already recommended to a friend.
Date published: 2023-01-22
Rated 5 out of 5 by from Awesome generator I’ve had this generator for about four months and very happy I chose this over others. Has started on the first pull every time !
Date published: 2023-01-17
Rated 4 out of 5 by from Does the job I bought this in the middle of a major power outage, I’m thankful that I was able to find one. This unit powers the heat and fridge with a few other minor things without issue. I will need to upgrade if I decide to power my well pump.
Date published: 2023-01-17
Rated 5 out of 5 by from Good machine I bought this just prior to a large storm, it is very easy to start, runs great, and does what it is supposed to.
Date published: 2023-01-13
Rated 3 out of 5 by from Works great when warm out, pain in the cold I have had this for a few years now. It's easy to start when the temp outside is over 45 or so, but any colder and you'll need some stamina to start it. If you can keep the engine warm or warm the engine up it will start better in the cold, but if it is cold soaked it's really difficult to start up.
Date published: 2023-01-06
Rated 5 out of 5 by from Started right up. Started right up. Bought a week ago. Hope it works when I really need it.
Date published: 2022-12-29
Rated 5 out of 5 by from Easy Setup I bought this in prep for a winter storm and it started great. Praise God, I haven't had to use it yet
Date published: 2022-12-23
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