WE ARE PROUD TO BE INDEPENDENT AND IN NO WAY ASSOCIATED WITH MANUFACTURERS. TO STAY UNBIASED, WE DO NOT ACCEPT FREE PRODUCTS. WE EARN FROM ADVERTISING FEES PAID BY AMAZON, EBAY OR ACME TOOLS ON QUALIFYING PURCHASES.

Yamaha EF6300iSDE Spec Review

The Yamaha EF6300iSDE is a quiet inverter generator with a rated wattage of 5500 W and a starting wattage of 6300 W.

CompareShortlistShortlistedRemoved from shortlist 21

Yamaha EF6300iSDEYamaha EF6300iSDEYamaha EF6300iSDE
Set Price Alert
×
Notify me when the price drops
Set an alert for the Yamaha EF6300iSDE - Current lowest price: $2,100.00

Description

OUR MOST POWERFUL INVERTER EVER. The EF6300iSDE is the most powerful, most advanced Yamaha inverter generator ever. (source: Yamaha (opens in a new tab))

Zoom on the Yamaha EF6300iSDE

In summary, the Yamaha EF6300iSDE is a quiet portable inverter generator especially useful for:

  • RV travellers looking for even more independence
  • Occasional participants of outdoor events, competitions, concerts and festivals
  • Food van owners who know that just a short power outage could lose them hundreds of dollars
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating buffs looking to enhance their experience
  • Professionals who want to ensure that a power failure will not prevent them from working

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Yamaha EF6300iSDE in use

The Yamaha EF6300iSDE

The Yamaha EF6300iSDE is powered by a 357 cc Yamaha MZ360 OHV 4-stroke engine. It delivers 120/240V, runs on gasoline and offers a running wattage of 5500W as well as a peak wattage of 6300W.

The inverter generator features a convenient and easy-to-use electric starter (battery included). It is rated for a noise of 58 dBA (less noisy than a refrigerator). Moreover, to offer you even more convenience, the EF6300iSDE can also be remotely started (separate purchase).

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 fuel capacity of 4.5 gallons allows the EF6300iSDE to operate for up to 13.3 hours with a full tank (fuel consumption around 0.34 GPH).

The EF6300iSDE produces a clean sine wave: thanks to a <4% Total Harmonic Disruption (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel features the upcoming 4 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 30A (L14-30R) receptacle

This Yamaha generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor. Besides, due to the featured twist-lock L14-30R receptacle, the EF6300iSDE is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.

Portability

The Yamaha EF6300iSDE is an inverter generator and has an encased design of the following dimensions: L30.7 x W24.3 x H27.2 in. Thus, it is more aesthetical than conventional, open frame products. The design follows the contemporary trends and is perfect for recreationally generating power.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 200 lbs make it incredibly difficult to manually lift and transport. Nevertheless, thanks to its set of 4 wheels and its double handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Yamaha EF6300iSDE

The EF6300iSDE's control panel

Monitoring of the EF6300iSDE's status and activity is made possible by a digital data center, which provides information on the lifetime run hours and is one of the features of its control panel.

In addition to this info, the light indicators show you if the generator is overloaded, the generator is ready and the oil level is too low.

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

Security-wise, this product benefits from an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

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 EF6300iSDE is packaged with the standard documentation and an owner's manual (opens in a new tab), helping you start the device right away.

Emissions

The Yamaha EF6300iSDE is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

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

Product Videos

The Yamaha EF6300iSDE versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF6300iSDE compare to generators of similar power (between 5000 and 6000 W).

  • With its weight of 200 lbs, the Yamaha EF6300iSDE is one of the heavier generators in the 5000-6000 rated wattage category. Regarding dry weight, one of the champions in the same power range is the WEN GN6000, with a dry weight of only 119 lbs.
  • As its lowest possible noise is rated at 58 dBA, this inverter generator qualifies as one of the more quiet of the products of similar power. If you are concerned with noise, check out the Honda EU7000iS, which is one of the least noisy generators in its power range, with a noise rating of just 52 dBA.
  • As for its autonomy, the EF6300iSDE, with an autonomy of up to 13.3 hours at a 25% load, is placed on the low end among the generators of its kind. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse WGen5300s, reaching up to 20 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This inverter generator has an estimated fuel consumption of roughly 0.34 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 Westinghouse WGen5300v, which boasts with a gas consumption of only 0.24 GPH, may be the right generator for you.
According to our stats, the following comparison is pretty popular: Yamaha EF6300iSDE vs Honda EU7000iS.

Price comparison

As you can see from this interactive chart, when compared to other 5000-6000W generators, the Yamaha EF6300iSDE 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
  • GFCI Outlets
  • Remote start capable
  • Inverter
  • Quiet for its power (58 dBA)
AVERAGE SPECS:
  • Decent fuel efficiency
WEAKNESSES:
  • No recoil back-up
  • No parallel ports
  • Not CARB-compliant
  • On the heavy side (200 lbs)
  • Relatively low run time

Do you own the Yamaha EF6300iSDE 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
Engine357 cc Yamaha MZ360 OHV 4-stroke
Starting systemElectric, Remote
Power
VoltageAC: 120/240V 60 Hz
Running watts5500 W
Starting watts6300 W
Running amps (@120/240V)45.8/22.9 amps
Peaks amps (@120/240V)52.5/26.3 amps
Run time @50% loadUnknown
Run time @25% load13.3 h
Features
GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
DC outletsNo
Data centerLifetime run hours
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 4.5 gal
Fuel gaugeYes
Misc
Weight200 lbs
Approx. dimensions (L x W x H)30.7 x 24.3 x 27.2 in
Noise (lower limit)58 dBA
THD< 4%
EmissionsEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedBattery
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.

×

This form does not send us any personal data (not even your IP address)

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 EF6300iSDE 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 sizing calculator.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
Microwave (1000 watts)15001500
Sump pump (1/2 hp)10502150
Refrigerator (energy star)1921192
LED TV150150
Total4392 W5492 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Radiant heater13001300
Radio100100
Total4390 W4980 W
For workTable saw18004500
Grinder14002500
Electric fence (25 miles)250250
Bug zapper8080
Total3530 W6230 W

Couldn't find the right answer for you? Ask your own question.

Your name and email address will not be publicly published. We only need them to be able to answer you directly

Yamaha EF6300iSDE
9 Total Score
1 review
Add your review
Price
6
Value
10
Quality
10
Performance
10
1 Review
  1. 4.5
    Price
    60
    Value
    100
    Quality
    100
    Performance
    100

    I bought two of these generators ELEVEN years ago. I only run non ethanol premium in them. This gas is replaced every June. I keep full synthetic oil in the crankcase. I will run these generators at 30% load for one hour about once every three months. I clear the carbs of fuel before storing. These generators look, start, run and perform just like new. The ONLY issue I have had is that the onboard battery will not survive the 12 volt DC parasitic drain within a month. I have to remove both batteries from these generators and keep them on a battery tender.
    These two generators were a significant investment to make eleven years ago but I do not regret it to this day. Also, they are still holding at the same retail price I paid at that time.

    + PROS:
    • If properly maintained, this generator can have a long life and still run like new.
    - CONS:
    • Expensive, heavy, and will drain the battery.
    Helpful(2) Unhelpful(0)You have already voted this

Leave a review

Your total score

Generator Bible
Logo
Compare items
  • Total (0)
Compare

You can compare as many generators as you wish. However, for the best results, we recommend you to compare only 2 generators at a time.

0