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Yamaha EF2800i (Discontinued)

The Yamaha EF2800i is a compact and lightweight open frame inverter generator with a rated wattage of 2,500 W and a starting wattage of 2,800 W.

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Yamaha EF2800iYamaha EF2800iYamaha EF2800i

This product was discontinued. For your convenience, we decided to leave this page up.
You might still find it second hand on eBay, by clicking on the button below.

Description

SMART POWER. 2800 maximum watts of output in a compact 66‑lb package equals exceptional power output to weight ratio.

Zoom on the Yamaha EF2800i

In summary, the Yamaha EF2800i is a compact and lightweight portable inverter generator especially useful for:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Handcrafting enthusiasts who wish to work on-the-go
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Professionals who want to ensure that a power failure will not prevent them from working
  • RV travellers looking for even more independence

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Yamaha EF2800i in use

The Yamaha EF2800i

The Yamaha EF2800i's engine, 171 cc (5.5 hp) Yamaha MZ175 OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 2,500W and reaches a peak wattage of 2,800W.

Enjoying a noise rating of 65 dBA (just slightly more noisy than a normal conversation), this inverter generator gets running thanks to a conventional pull-start mechanism.

This generator features Yamaha's Smart Throttle™. This load-sensing feature automatically adjusts engine speed to match its load in order to offer greater fuel efficiency and noise reduction.

With a fuel capacity of 2.6 gallons, the EF2800i may run for up to 14.7 hours with a full tank (fuel consumption around 0.18 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the EF2800i produces a clean sine wave, with a <2.5% Total Harmonic Distortion (THD).

Outlets

The control panel features the upcoming 3 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle

It also sports 1 DC outlet: there's a 12V 10A receptacle with which charging your batteries is made easy.

Even if this Yamaha generator isn't quite RV Ready, it still allows for an easy RV connection via an L5-30P to TT-30R adaptor, thanks to its L5-30R receptacle.

Portability

The Yamaha EF2800i has a conventional, open frame design, of the following dimensions: L19.2 x W15.6 x H16.7 in, which offers support and allows it to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

The EF2800i's dry weight of 68 lbs lets you use its power anywhere needed. Moreover, its open frame design makes it incredibly easy to grab the frame in order to change its location.

Features

Panel of the Yamaha EF2800i

The EF2800i's control panel

Several light indicators serve to show you when the generator is overloaded, the generator is ready and the oil level is too low.

The inverter generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

From a security standpoint, the product offers an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system), allowing you to use it with a peace of mind.

Yamaha's Oil Watch warning system gives you an extra peace of mind. This feature enhances long-term durability by preventing engine damage and costly repairs. Once the oil begins to run low, the generator automatically shuts off and cannot be re-started until oil is added.

Regarding its accessories, besides the aforementioned features, the Yamaha EF2800i's box includes the typical documentation and an owner's manual (opens in a new tab), letting you start it right off the bat.

Emissions

The Yamaha EF2800i is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor, making it usable in forested areas.

Product Videos

The Yamaha EF2800i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF2800i compare to inverter generators of similar power (between 2000 and 3000 W).

  • As far as its dry weight is concerned, the Yamaha EF2800i weighs just 68 pounds and thus, it is one of the lighter 2000 to 3000 rated wattage inverter generators. If you are concerned by weight, one of the champions in the above-mentioned power range is the Westinghouse iGen2500, with a dry weight of just 46.3 pounds.
  • Among the generators of a comparable running wattage, this inverter generator with a lowest noise of 65 dBA can be judged as noisy. If noise emissions are one of your priorities, you may be interested in the Honda EU3000iS, one of the least noisy generators similarly powerful as this one, rated for 50 dBA.
  • The EF2800i provides a higher run time than similarly powerful inverters, reaching up to 14.7 hours at 25% load. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Honda EU3000iS, which is able to run for up to 20 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This inverter generator has an estimated fuel consumption of roughly 0.18 GPH (gallon per hour) at a 25% load, rendering it somewhat average compared to devices of a similar output. If you wish to further improve in the area of fuel efficiency, the Cummins Onan P2500i, which boasts with a gas consumption of only 0.1 GPH, may be the right generator for you.
According to our stats, the following comparison is pretty popular: Yamaha EF2800i vs Honda EG2800i.

The bottom line

STRENGTHS:
  • GFCI Outlets
  • Inverter
  • Lightweight (68 lbs)
  • High run time
AVERAGE SPECS:
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • No electric start
  • No parallel ports
  • Not CARB-compliant
  • On the noisy side (65 dBA)

Do you own the Yamaha EF2800i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine171 cc Yamaha MZ175 OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts2,500 W
Starting watts2,800 W
Running amps20.8 amps
Peak amps23.3 amps
Run time @50% loadUnknown
Run time @25% load14.7 h
Features
GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets1x 120V 30A (L5-30R)
DC outlets1x 12V 10A receptacle
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankMetal, 2.6 gal
Fuel gaugeYes
Misc
Weight68 lbs
Approx. dimensions (L x W x H)19.2 x 15.6 x 16.7 in
Noise (lower limit)65 dBA
THD< 2.5%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
Accessories includedNo
Warranty3 years
UPC799530396645

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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About Yamaha

With a rich history of over 130 years, the Japanese based Yamaha Corporation, founded in 1887, has tipped its fingers in every industry imaginable, most notably motorcycles, musical instruments and electronics. The company boasts with a wide range of products, including many of the top rated portable generators. However, it has been reported that many of the newer models are made in China, rather than Japan.

Warranty Information

The Yamaha EF2800i is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Yamaha generators, please consult Yamaha's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-962-7926.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator size calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Electric fry pan15001500
Radio100100
Total1792 W2792 W
For campingRadiant heater13001300
RV refrigerator180600
Blender400850
Radio100100
Total1980 W2430 W
For workGrinder14002500
Electric fence (25 miles)250250
Total1650 W2750 W
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