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The Yamaha ef3000is - 2800 watt portable inverter generator is available for purchase today.

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Yamaha EF3000iS - 2800 Watt Portable Inverter Generator

(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
25 Reviews
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Currently on Backorder Backordered
Estimated Availability
August 25, 2016
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Extended Warranty
Excludes CA

I understand this product is on backorder with an estimated ship date of August 25, 2016

  • Features
  • Specs
  • 3
  • 25
  • Articles
  • Shipping
  • Accessories

Run Watts
Rated Watts
Surge Watts
Starting Watts

Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Inverter System with Pulse Width Modulation
Produces higher-quality and cleaner electricity
Can safely operate products with built in microcomputers

Smart Throttle Load Sensing Throttle Control
Automatically adjusts engine speed to precisely match load
Results in greater fuel efficiency and noise reduction

Noise Block Acoustically Designed Sound Reduction System
The full enclosure is made of sound absorbing materials
53dBA @ 25% load : 60dBA @ 100% load

Recoil Start w/ Automatic Decompression
Provides easier starting compared to older engines

12 Volt DC Output (Battery Charging Cables Included)
Recharge 12 volt batteries for RV, auto, marine, aircraft, etc
12V DC output is 12-Amps

Oil Watch Warning System
Automatically shuts off before oil level is low to protect engine

Long Run Time
19 hours without refueling (at 1/4 rated load) w/economy idle

CARB Compliant - For Sale In All 50 States
  Model Number:EF3000IS
 Made in USA:No
 Starting System:Recoil Start
 HP/CC:171 cc
 Consumer Engine Warranty:3 Years
 Commercial Engine Warranty:3 Years
 Engine RPM:Inverter
 Low Oil Alert/Shutdown:Yes
 Cast Iron Sleeve:Yes
Product Specs
 Voltage120 Single-Phase
 Frequency:60 Hertz
 Auto Voltage Regulation:Yes
 Fuel TypeGasoline
 Rated Amps:23 Amps @ 120 Volts (Single Phase)
 Portability Kit:Plastic Wheels
 Tank Size:3.4 Gallons
 Run Time (50% Load):15 Hours
 Fuel Tank Material:Metal
 Fuel Gauge:Yes
 Decibel Rating @ 7m:53-60 db(A)
 Idle Control:Yes
 Hour Meter:No
 Voltage Meter:No
 Lifting Eye:No
 Neutral Type:Floating
 Battery:Not Applicable
 Assembly Required:No
 Weight:136 Lbs. (61.69 kilograms)
 Dimensions:26.7"L x 17.5"W x 21.9"H
(67.82 x 44.45 x 55.63 cm)
 Consumer Warranty:3 Years
 Commercial Warranty:3 Years
Download Documents

12-Amp DC
NEMA 5-20R (Wall-Type)

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  3 Questions
Q: I have a customer running propane on a Yamaha genset. While burning propane the engine burns excessive oil, not a problem on gasoline. Any ideas?
by Shane Bland from Florida on June 24, 2014

A: The Yamaha portable generators are engineered and warranted to operate on gasoline only. The reason your customer is burning through oil is due to the excessive temperatures of the unit.

Gasoline burns at 485 degrees F whereas propane burns at 1008 degrees F which will cause excessive heat within the engine in turn burning off the engine oil.

by Mike, Product Expert
Q: If I buy a Yamaha EF3000i for work an play. My question is if I use the gen to charge my 12 volt 100 amp battery, how long would it take? And would using the gen be more efficient and time saving rather than getting solar panels or a wind gen to charge the batteries when using batteries for power?
by Ron Jolin from Minnesota on February 05, 2013

A: This power source is designed to charge batteries up to 40 Ah (Amp hours) that are half-discharged. Do not charge batteries of a higher capacity then 40 Ah.

12VDC Battery

The time required for recharging a battery varies depending on the discharge level of the battery. When the specific gravity of the battery reaches 1.26 to 1.28, charging is complete. When charging, check the battery's specific gravity once an hour.

The average time for charging a half-discharged 40 Ah battery is approximately 5 hours. Be sure to check the battery fluid level before charging.

**Do not connect any load to the battery or use the engine starter motor while charging. This causes higher current to flow through the generator which will burn out the coil.
**Do not connect a VRLA (Valve Regulated Lead Acid) battery. To Charge a VLRA battery, a special (constant-voltage) battery charger is required.

by Mike, Product Expert
Q: I am trying to decide whether I should get the Yamaha EF300iS or the iSEB boost model. I know these are aimed at the RV/Camping market, but I am planning to use as emergency power at my house and like these for the quiet operation and long run times between refueling when compared to others.

I would be planning to run about a 5 amp small freezer, a 10 amp refrigerator, and about a 10 amp single room air conditioner. Since the refrigerator and freezer only run intermittently I think this generator will run that load.. and if needed I can unplug the freezer overnight when the room air conditioner will be used. So is the boost technology worth it for this sort of application?

I won't be starting any one large motor like the RV air conditioners I keep seeing mentioned for the iSEB but rather intermittently starting these smaller motors.

by Alan Felsen from Maryland on July 06, 2012

A: Alan, air conditioners require a lot of electricity to turn over - regardless if they are window units or RV units.

If you insist on getting a Yamaha, go with the boost version to make sure the air conditioner works.

Our recommendation, however, is to get a larger emergency generator designed for power outages instead of camping. It'll be cheaper and power more things.

You can learn more here:

by Mike, Product Expert
Yamaha EF3000IS Reviews & Ratings
Overall Rating
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
Quiet (9)
Easy To Use (8)
High Quality (7)
Reliable (4)
Price (3)
Heavy (5)
Expensive (2)
Need Long Thin Funnel To... (1)
Not As Quiet As I Hoped ... (1)
100% of respondents would recommend this product to a friend
25 Reviews  Sort by 
George S.
Clovis, CA
Purchased from Electric Generators Direct
Purchased 9/25/15
Most Helpful Positive Review
5 out of 55 out of 55 out of 55 out of 55 out of 5
Yamaha Ef3000is
I filled it with Mobile I oil and put fuel in the tank. It started easily on the first pull and has continued to do just that every time. I was disappointed at first that I had purchased a pull start only generator. But after starting it many times all on different days I'm glad I didn't purchase the electric start. I can't wait to go dry camping and give it a real test. For now it will sit in my garage.
George Recommends This Yamaha Product
George's Experience With Electric Generators Direct
Web Site


"I received the generator one week after it was ordered. The delivery driver unloaded it with a pallet jack and put it into my garage. I took it off of the pallet and the delivery driver said he would take it. I cut open the box and inspected the generator, perfect not a mark on it."
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Robert S.
Cost, TX
Purchased from Electric Generators Direct
Purchased 7/9/15
5 out of 55 out of 55 out of 55 out of 55 out of 5
First Impression
If this generator continues to perform, it will be one of the best investments I have made. Started the first pull out of the box and is perfect for my air compressor and electric hand tools. Very easy to operate, quiet, and a child could start it. Thanks Yamaha!
Robert Recommends This Yamaha Product
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Frank M.
Rockville, MD
Purchased from Electric Generators Direct
Purchased 4/12/16
5 out of 55 out of 55 out of 55 out of 55 out of 5
R2 Unit
The generator was back ordered for a few weeks, but showed up in perfect working order, the delivery people worked with me on the delivery because I could not be home at the time. Started on the first pull of the rope (after adding oil and gas).. very quiet wife and I can easily pick it up to put it in my truck and the wheels are nice on my concrete driveway.. All in all a good buy. My wife, a Star Wars fan calls it our R2 (D2) unit...
Frank Recommends This Yamaha Product
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Milton B.
Lithonia, GA
5 out of 55 out of 55 out of 55 out of 55 out of 5
After doing some research for a month, I purchased the EF3000IS Generator Inverter. I Puchased the Yamaha EF3000 for a number of reasons such as the manufactory is a yamaha and I can take the generator in for maintenance, it has a 3 year warranty, it an inverter and can power most of my home appliances safely, such as flat screen TVs. It has a 1/4 run time of about 18 hours. It has idle control. I tested the EF3000IS 2X this week. It start easly 1,2,or 3 pulls on the cord. I was able to power a... more
Pros: Quiet, Easy To Use, Reliable, Exceeded Expectations
Cons: Heavy
Milton Recommends This Yamaha Product
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Michael E.
Reedley, CA
Purchased from Electric Generators Direct
Purchased 10/4/15
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good But Damaged
I received my generator on time by R&L Trucking. I used it this past weekend at Famoso Raceway for the Hot Rod Reunion. Good generator, a little on the heavy side for me to pickup but with some help is manageable.
Michael Recommends This Yamaha Product
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Vito L.
Staten Island, NY
Purchased from Electric Generators Direct
Purchased 6/3/13
Total Reviews
4 Reviews
Total Helpful Votes
82 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Started On 3rd Pull In 20 Degree Weather
After running 60 days ago and having a threat of heavy snow I went out to start the Yamaha 3000. Expecting to pull and pull I was pleasantly surprised to have it start on the 3rd pull. After it warmed up I turned on ECO mode and it was so quiet I almost forgot it was running. I used it to start my snow blower. No Problem!!

I always use gas stabilizer and Sea Foam and turn off the fuel valve to make it think it ran out of gas before storage. I also have a honda EM5000 which as far as I am... more
Pros: High Quality, Quiet, Exceeded Expectations, I'd Buy It Again
Cons: Heavy
Vito Recommends This Yamaha Product
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Dayton, OH
Purchased from Electric Generators Direct
Purchased 5/31/12
Total Helpful Votes
20 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy Pull Starting
I have used this model on two camping trips. It runs my 13.5 BTU A/C unit no problem. Runs about 8 hours with A/C going before fueling up again. Super quiet and super easy to pull start, my 9 year old daughter can start it.
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Don M.
Total Helpful Votes
20 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Value For A Yamaha
I use this unit primarily for home backup power. Very quiet and long running. The cost of quiet and long running is that this is a big, heavy unit for its 3000 watt model. But I easily roll it in and out of the garage. The only reason for an electric start is remote operation. Anyone capable of moving and fueling a generator can easily pull start this unit. It's no harder to start than a quality lawn mower.

I don't believe that the boost model is necessary unless a large single load is... more
Pros: Durable, Easy To Use, Quiet, High Quality
Cons: Heavy, Expensive
Don Recommends This Yamaha Product
Don Would Recommend Electric Generators Direct To A Friend
Web Site


"No problems at all with order."
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Purchased from Electric Generators Direct
Purchased 11/12/12
Total Helpful Votes
19 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best Value
This is really the best value out there if you want a generator quieter than most, and durable.... you get all the extras that Honda would charge you extra for, for free. One thing I like better about the Yamaha is it's built on a frame that goes throughout the generator. You can find videos on YouTube where people take them apart for basic servicing and its clearly evident that the handles are welded to a frame that goes through the whole generator. This is a big plus if you plan to chain... more
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Total Helpful Votes
16 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Quiet Is A Blessing
I bought my Yamaha inverter from E. G. DIRECT. This was the best purchase that I made in 2012 . It was delivered in perfect condition when it arrived. I couldn't wait to open it and get that bad boy running.

A quart of oil and a gallon of gas later,I pulled the starter chord and it started smooth and easy. So quiet I couldn't believe it. First thing I plugged in was my circular saw and my hammer drill.

Full power on both and the generator barely raised a decibel. I bought an inexpensive... more
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Thomas M.
Fallston, MD
Total Helpful Votes
13 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
The Mighty Little Blue Generator
This little blue yamaha is so easy to use and has very good output. I lost power, ran it for two days straight. Very happy it ran the heating unit to my 4,000 sq ft home plus frig. ect. Whats not to like about little blue.
Pros: High Quality, Quiet, Reliable, Price
Thomas Recommends This Yamaha Product
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Free Freight
  • Ships via Semi-Truck
  • Curb Side Delivery
  • Free to Lower 48 States
  • Standard Rates to Alaska, Hawaii
We currently CANNOT ship this product to Canada or any destination outside of the United States
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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Shop for the Yamaha EF3000iS - 2800 Watt Portable Inverter Generator at Electric Generators Direct. Research Yamaha 400430937905 recreational portable generators online. Find Yamaha EF3000IS recreational portable generators & Yamaha 3000 watt Recoil Start Inverter Generator features and specifications. Get the best deal; compare Yamaha EF3000IS prices now. Buy the EF3000IS direct and save.