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Yamaha EF2000iSv2 Spec Review

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The Yamaha EF2000iSv2 is a quiet, compact and lightweight portable inverter generator with a rated wattage of 1600 W and a starting wattage of 2000 W.

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Yamaha EF2000iSv2

Description

The EF2000iSHv2, with a camo skin, is an alternate version of this model.
POWER‑PACKED, QUIET AND LIGHTWEIGHT. Quietly powers a wider range of applications for an extended time, while still portable and retro‑cool. (source: Yamaha)

Zoom on the Yamaha EF2000iSv2

In a nutshell, the Yamaha EF2000iSv2 is a quiet, compact and lightweight portable inverter generator mostly geared towards:

  • Camping and tailgating buffs looking to enhance their experience
  • DIYers who wish to improve their efficiency with tools

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 EF2000iSv2 in use

The Yamaha EF2000iSv2

The Yamaha EF2000iSv2 is powered by a 79 cc Yamaha MZ80 OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 1600W as well as a peak wattage of 2000W. In addition, the device is parallel capable (Twin Tech cable not included) and thus, can be linked to a similar or compatible unit for added power.

Enjoying a noise rating of 51.5 dBA (just slightly more noisy than a refrigerator), 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.

The EF2000iSv2 can operate for up to 10.5 hours with a full tank (fuel consumption around 0.1 GPH), due to its fuel capacity of 1.1 gallon.

The EF2000iSv2 generates a clean sine wave: providing <2.5% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Several examples of what the generator may allow you to power simultaneously are:Note: All of these devices might not start simultaneously. Provided examples are based on a maximum load of 75 % and estimated wattages. With the help of our wattage calculator you can find out if this product suits your requirements.

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

It also sports 1 DC outlet: there's a 12V 8A receptacle with which charging your batteries is made easy.

Portability

As the Yamaha EF2000iSv2 is an inverter generator, its encased design (L19.3 x W11 x H17.9 in) offers more esthetics than a conventional, open frame product. The design follows the contemporary trends and is perfect for recreationally generating power.

Since the EF2000iSv2 weighs only 44.1 lbs, it can be labeled as a portable lightweight generator. The generator can be moved with ease by only one person and so it can be enjoyed on-the-go. A handle (molded in the case) allows you to carry it easily, further enhancing its convenience.

Features

Some light indicators allow you to instantly see if the generator is overloaded, the generator is ready and the oil level is too low.

The inverter generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker).

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.

Accessory-wise, along with the previously mentioned features, the Yamaha EF2000iSv2 is packaged with the standard documentation and a user manual, helping you start the device right away.

Emissions

The Yamaha EF2000iSv2 is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor and therefore, can be used in forested areas.

Product Video

Video of the Yamaha EF2000iSv2

The Yamaha EF2000iSv2 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF2000iSv2 compare to generators of similar power (between 1500 and 2500 W).

  • Weight-wise, the Yamaha EF2000iSv2 has only 44.1 lbs, which renders it one of the lighter generators which produce 1500 to 2500 rated watts. If weight is your top priority, one of the champions in this power category is the WEN 56202i, weighing just 38.6 pounds.
  • Since this inverter generator is rated for a lowest possible noise of 51.5 dBA, it can be considered as one of the more quiet of the products generating similar power. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU2200i, whose lowest noise levels reach just 48 dBA.
  • As the EF2000iSv2 offers 10.5 hours run time on a full tank at a 25% load, it falls within the average autonomy range among the generators of a similar power. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Westinghouse WGen2000, as it provides 26 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 can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.1 GPH (gallon per hour) at 25% load, within the aforementioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Energizer eZV2000P. With a fuel consumption of as little as 0.08 GPH, it is one of the most efficient generators currently on the market.

Price comparison

As you can see from this dynamic chart, when compared to other 1500-2500W generators, the Yamaha EF2000iSv2 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Parallel capable
  • Inverter
  • Lightweight (44.1 lbs)
  • Quiet for its power (51.5 dBA)
  • Fuel efficient
AVERAGE SPECS:
  • Decent run time
WEAKNESSES:
  • No data center
  • No electric start

Do you own the Yamaha EF2000iSv2 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Where to buy the Yamaha EF2000iSv2?

You can easily buy your Yamaha generator online. You will benefit from a convenient delivery and avoid carrying the heavy package yourself. Here are a few reliable online sellers:
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Features and Specifications

General

InverterYes
PortableYes
Parallel capableYes, cable not included
RV readyNo
FuelGasoline
Engine79 cc Yamaha MZ80 OHV 4-stroke
Starting systemRecoil

Power

VoltageAC: 120V 60 Hz, DC: 12V
Running watts1600 W
Starting watts2000 W
Running amps13.3 amps
Peaks amps16.7 amps
Run time @50% loadN/A
Run time @25% load10.5 h

Features

GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationNo
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets1x 12V 8A
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tank1.1 gal
Fuel gaugeYes

Misc

Weight44.1 lbs
Dimensions (L x W x H)19.3 x 11 x 17.9 in
Noise (lower limit)51.5 dBA
THD< 2.5%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedNo
Warranty3 years

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.

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 EF2000iSv2 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. Alternatively, you can also contact their Customer Support: 1-800-962-7926.

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