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. (Read full specs)

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Yamaha EF2800iYamaha EF2800iYamaha EF2800i

This product was discontinued. For your convenience, we decided to leave this page up.

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 a few words, the Yamaha EF2800i is a compact and lightweight portable inverter generator perfectly suited for:

  • Camping and tailgating hobbyists looking for a portable power source
  • 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 be able to deliver results, even during a power failure
  • RV travellers wishing to enhance their freedom and nomad lifestyle

Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.

Power & Run Time

The Yamaha EF2800i in use

The Yamaha EF2800i

The Yamaha EF2800i is powered by a 171 cc (5.5 hp) Yamaha MZ175 OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 2,500W as well as a peak wattage of 2,800W.

With a noise rating of 65 dBA (just slightly more noisy than an office), the inverter generator's starting mechanism is centered around a manual recoil starter system.

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.

The EF2800i's fuel tank, boasting 2.6 gallons, allows it to operate for up to 14.7 hours with a full tank (with an estimated fuel consumption of 0.18 GPH).

The <2.5% Total Harmonic Distortion (THD) of the EF2800i ensures a clean sine wave output, providing a secure power source for your sensitive electronics through its AC outlets.

Outlets

The control panel features the upcoming 3 AC outlets:

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

Additionally, it features 1 DC outlet: there's a 12V 10A receptacle with which charging your batteries is made easy.

This Yamaha generator features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready.

Portability

At L19.2 x W15.6 x H16.7 in, the standard open frame design of the Yamaha EF2800i delivers stability alongside easy maintenance access to components and good air cooling. The generator is designed for ideal use outdoors and in rough environments.

With a dry weight of 68 lbs, the EF2800i can easily follow you wherever your power needs are. Furthermore, thanks to its open frame, the generator is easily grabbed and moved to a new location.

Features

Panel of the Yamaha EF2800i

The EF2800i's control panel

Light indicators on the device will notify you if the generator is overloaded, the oil level is too low and the generator is ready.

The fuel level of the inverter generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system), giving you a peace of mind during use.

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.

Along with the aforementioned features, from an accessory standpoint, the Yamaha EF2800i's box includes the typical documentation and an owner's manual (opens in a new tab), which will help you start your generator promptly.

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).

  • At 68 lbs in dry weight, the Yamaha EF2800i fits well within the typical weight bracket for inverter generators producing 2000 to 3000 rated watts. Weight-conscious users may find the WEN 56280iX appealing, as it is one of the top contenders in this power range, weighing just 41.9 pounds.
  • When compared to other units producing a similar running wattage, this inverter generator and its lowest emitted noise of 65 dBA stand out for being on the louder side. If you wish to prioritize minimal noise, the Honda EU3000iS stands out as one of the quietest options among generators of similar power, with a rating of 50 dBA.
  • The EF2800i provides a higher run time than similarly powerful inverters, reaching up to 14.7 hours at 25% load. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Honda EU3000iS, as it provides 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. The inverter generator utilizes approximately 0.18 GPH of gasoline at a 25% load, placing it within the typical range of fuel consumption seen in products of comparable wattage. To prioritize fuel savings, we advise considering the Westinghouse iGen2800, which stands out for its gasoline efficiency, consuming just 0.08 gallons per hour.
According to our stats, the following comparison is pretty popular: Yamaha EF2800i vs Honda EG2800i.

The bottom line

STRENGTHS:
  • GFCI Outlets
  • Inverter
  • High run time
AVERAGE SPECS:
  • Decent weight (68 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • No electric start
  • No parallel ports
  • 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
Parallel capableNo
RV readyNo
FuelGasoline
Engine171 cc Yamaha MZ175 OHV 4-stroke
Starting systemRecoil
Warranty3 years
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 outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 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
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.

Spec Improvement×

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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, many of their 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 sizer.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
AC (10,000 BTU)15002200
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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