Yamaha EF6300iSDE (Discontinued)
The Yamaha EF6300iSDE is a quiet inverter generator with a rated wattage of 5,500 W and a starting wattage of 6,300 W. (Read full specs)
This product has been discontinued. We've kept this page live for reference.
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Description
OUR MOST POWERFUL INVERTER EVER. The EF6300iSDE is the most powerful, most advanced Yamaha inverter generator ever.
Zoom on the Yamaha EF6300iSDE
In a nutshell, the Yamaha EF6300iSDE is a quiet portable inverter generator mostly geared towards:
- RV travellers who wish to upgrade their experience to another level
- People occasionally participating in sporting competitions, open-air performances and outdoor 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
- Professionals who want to be able to deliver results, even during a power failure
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 EF6300iSDE
The Yamaha EF6300iSDE's design includes a gasoline-fueled 357 cc Yamaha MZ360 OHV 4-stroke engine. With a 120/240V output, it gives a running wattage of 5,500W and also a peak wattage of 6,300W.
Operating at a noise rating of 58 dBA (less noisy than a quiet suburb), this inverter generator starts up with a straightforward and intuitive electric starter (battery included).
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.
Thanks to a fuel capacity of 4.5 gallons, the EF6300iSDE can operate for up to 13.3 hours with a full tank (fuel consumption around 0.34 GPH).
Featuring a <4% Total Harmonic Distortion (THD), the EF6300iSDE delivers a clean sine wave, guaranteeing the safety of your sensitive electronics plugged into its AC outlets.
Outlets
The control panel provides the upcoming 4 AC outlets:
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. Besides, the EF6300iSDE's twist-lock L14-30R receptacle makes it transfer switch ready, enabling hassle-free connection to your breaker box for powering your home during outages.
Portability
The Yamaha EF6300iSDE is an inverter generator and features an encased design with the following dimensions: L30.7 x W24.3 x H27.2 in. This design enhances aesthetics and helps minimize noise levels, distinguishing it from conventional, open frame products. This modern design aims to provide an ideal power solution to recreational users.
While technically classified as 'portable' due to its ability to be moved, the 216 lbs of this generator may make manual lifting and transportation somewhat difficult. However, the limited maneuverability is remedied with its set of 4 wheels and its double handle, facilitating convenient shifting once the generator is positioned on the ground.
Features
The EF6300iSDE's control panel
Included in the control panel of the EF6300iSDE, a digital data center assists in tracking its status and activity by providing details on the power output and lifetime run hours.
In addition to this info, light indicators on the device will notify you if the generator is ready, the generator is overloaded and the oil level is too low.
With its built-in fuel gauge, the inverter generator provides quick and convenient gas level checks.
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.
It also includes a carbon monoxide sensor. This sensor is designed to monitor the level of carbon monoxide present during the generator's operation. If the generator is positioned incorrectly and carbon monoxide levels rise to an unsafe level, the generator will automatically shut down.
Besides the features previously mentioned, accessory-wise, the Yamaha EF6300iSDE comes with the usual documentation and owner's manual (opens in a new tab) needed to get you promptly started. An official storage cover is available, as a separate purchase.
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 inverter generators of similar power (between 5000 and 6000 W).
- Weighing 216 lbs, the Yamaha EF6300iSDE is one of the heavier inverter generators within the 5000-6000 rated wattage bracket. Regarding dry weight, one of the champions in the same power range is the Pulsar PGX60BiSRCO, with a dry weight of only 93.5 lbs.
- Delivering a rated noise output as low as 58 dBA, this inverter generator is has a quieter operation that most units of similar type and power. If noise is a concern for you, you could consider the Honda EU7000iS, which is one of the least noisy generators in its power range, rated at 52 dBA.
- Given that the EF6300iSDE reaches an autonomy of up to 13.3 hours with a full tank and at 25% load, it is placed within the average autonomy range of similarly powerful inverter generators. If runtime is a priority for you, the Champion 201532 stands out as one of the generators with the longest run time in its power range, providing up to 18 hours of continuous use.
- Though run time is a significant parameter, it's closely tied to the generator's fuel tank size. To get a comprehensive understanding, fuel efficiency must also be taken into account. Compared to similar devices, this inverter generator is less fuel-efficient than most: it burns around 0.34 gallons of gasoline per hour at a 25% load. If minimizing fuel usage is one of your key priorities, the DuroMax XP7000iHT is one of the most efficient devices with similar power output, with a gasoline consumption of only 0.19 gallons per hour.
The bottom line
- CO sensor
- GFCI Outlets
- Electric start
- Inverter
- Quiet for its power (58 dBA)
- Made in Japan
- Decent run time
- No recoil back-up
- No remote start
- No parallel ports
- On the heavy side (216 lbs)
- Low fuel efficiency
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
| Inverter | Yes |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 357 cc Yamaha MZ360 OHV 4-stroke |
| Starting system | Electric |
| Warranty | 3 years |
| Voltage | AC: 120/240V 60 Hz |
|---|---|
| Running watts | 5,500 W |
| Starting watts | 6,300 W |
| Running amps (@120/240V) | 45.8/22.9 amps |
| Peak amps (@120/240V) | 52.5/26.3 amps |
| Run time @50% load | Unknown |
| Run time @25% load | 13.3 h |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | No |
| Data center | Power output and lifetime run hours |
| Indicators | Low oil, overload and output ready |
| Fuel tank | Plastic, 4.5 gal |
| Fuel gauge | Yes |
| Weight | 216 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 30.7 x 24.3 x 27.2 in |
| Noise (lower limit) | 58 dBA |
| THD | < 4% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Battery |
| Country of origin | Japan |
| Other model numbers | EF63ISDEX |
| UPC | 765053849371 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
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 were made in China, rather than Japan. In 2023, Yamaha transfered its Power Products business to Willbe Co., Ltd. Yamaha generators are now no longer manufactured, with sales limited to existing stock.
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?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Electric fry pan | 1500 | 1500 |
| AC (10,000 BTU) | 1500 | 2200 | |
| Sump pump (1/2 hp) | 1050 | 2150 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Game console | 150 | 150 | |
| Total | 4392 W | 5492 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Radiant heater | 1300 | 1300 | |
| Radio | 100 | 100 | |
| Total | 4390 W | 4980 W | |
| For work | Table saw | 1800 | 4500 |
| Grinder | 1400 | 2500 | |
| Electric fence (25 miles) | 250 | 250 | |
| Bug zapper | 80 | 80 | |
| Total | 3530 W | 6230 W |
User Reviews
The 6300isde is simply an incredible clean power making machine. These inverter generators (ig) are no longer produced but occasionally show up for sale. Very quiet. They are heavy and and have 4 fixed casters making turning the ig a bit of a challenge. Very reliable!
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.