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 looking for even more independence
- Occasional participants of outdoor events, competitions, concerts and festivals
- Food truck owners who do not wish to see their business interrupted under any circumstances
- Homeowners in need of an emergency backup power for their essentials
- Professionals who want to ensure that a power failure will not prevent them from working
The subsequent sections will explore in detail its power characteristics, the diverse outlets it provides, its overall portability, and the supplementary features it offers.
Power & Run Time
The Yamaha EF6300iSDE
The Yamaha EF6300iSDE houses a 357 cc Yamaha MZ360 OHV 4-stroke engine, which provides 120/240V, consumes gasoline and delivers a running wattage of 5,500W along with a peak wattage of 6,300W.
The inverter generator is rated for a noise of 58 dBA (less noisy than a refrigerator). Its starting mechanism is based on 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.
The EF6300iSDE's fuel tank holds 4.5 gallons, ensuring uninterrupted operation for up to 13.3 hours with a full tank (fuel consumption approximately 0.34 GPH).
The EF6300iSDE ensures a clean sine wave output, boasting <4% Total Harmonic Distortion (THD) to protect your sensitive electronics when connected to its AC outlets.
Outlets
The control panel is equipped with the following 4 AC outlets:
While this Yamaha generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor. Besides, since the EF6300iSDE bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.
Portability
As the Yamaha EF6300iSDE is an inverter generator, its encased design (L30.7 x W24.3 x H27.2 in) offers more aesthetics than a conventional, open frame product. This type of design is the most modern and convenient way to recreationally generate power.
Even at 216 lbs, the generator is categorized as 'portable,' suggesting its movability, although its weight may impede its portability. Despite the restricted maneuverability, its set of 4 wheels and its double handle provides a solution, allowing for convenient shifting once the generator is positioned on the ground.
Features
The EF6300iSDE's control panel
Enhancing monitoring capabilities, the EF6300iSDE features a digital data center within its control panel, furnishing essential details on the lifetime run hours and power output for tracking activity and status.
In addition to this info, when the generator is ready, the oil level is too low and the generator is on overload, you will be informed by the featured light indicators.
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.
As for its security measures, the device features an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), letting you 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.
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.
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. 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).
- A weight of 216 lbs makes the Yamaha EF6300iSDE one of the heavier inverters in the 5000-6000 rated wattage range. If you are concerned by weight, one of the champions in the above-mentioned power range is the Pulsar PGX60BiSRCO, with a dry weight of just 93.5 pounds.
- This inverter generator offers a rated noise level of 58 dBA, placing it among the quieter alternatives in its type and power category. If noise level is one your key decisive factors, you may find the Honda EU7000iS appealing. It's rated at 52 dBA, making it one of the quietest generators in its power range.
- Offering up to 13.3 hours of running time on a full tank at 25% load, the EF6300iSDE is within the average autonomy range of similarly powerful inverter generators. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Champion 201532, reaching up to 18 hours.
- Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. In terms of fuel efficiency within its wattage range, this inverter generator falls short: it consumes approximately 0.34 GPH at a 25% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.19 GPH, the DuroMax XP7000iHT is a device you could look out for.
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 | Sump pump (1/2 hp) | 1050 | 2150 |
| Furnace fan (1/2 hp) | 875 | 2350 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Electric range | 2100 | 2100 | |
| Security system | 180 | 180 | |
| Total | 4397 W | 5872 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| RV AC (11,000 BTU) | 1010 | 1600 | |
| 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.