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Description
Zoom on the Yamaha EF5500D
In a nutshell, the Yamaha EF5500D is a portable generator mostly geared towards:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- 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
In the following paragraphs, we shall explore the power characteristics, available outlets, portability and any additional features of the device, along with its emission compliance information.
Power & Run Time
The Yamaha EF5500D
The Yamaha EF5500D's core is the 358 cc Yamaha MZ360 OHV 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 4500W and a peak wattage of 5500W.
The generator features a simple traditional pull-start mechanism. It is rated for a noise of 74.1 dBA (just slightly more noisy than a dishwasher).
With a full tank, the EF5500D can operate for around 13.5 hours at 50% load (fuel consumption around 0.51 GPH), thanks to its fuel capacity of 6.9 gallons.
Outlets
The control panel provides the upcoming 6 AC outlets:
Even if this Yamaha generator isn't quite RV Ready, it still allows for an easy RV connection via an L5-30P to TT-30R adaptor, thanks to its L5-30R receptacle. Besides, as the EF5500D holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.
Portability
The Yamaha EF5500D has the following dimensions: L21.9 x W29 x H31.5 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.
Although this generator is technically considered 'portable' (in the sense that it can be moved), its 221.7 lbs make it incredibly difficult to manually lift and transport. Still, once it is on the ground, a wheel kit and a folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.
Further safety during transport, loading and unloading of the device is provided by a lift hook, which is placed on the top of the generator's frame.
Features
The EF5500D's control panel
To help you monitor the EF5500D's status and activity, its control panel is equipped with a digital data center, giving you information on the lifetime run hours.
In addition to this info, a light indicator serves to show you when its oil levels are insufficient.
The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
From a security point of view, the generator is equipped with an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), 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.
Besides the usual set of documentation and user manual to get you promptly started, Yamaha also included a tool kit in the EF5500D's packaging.
Emissions
The Yamaha EF5500D is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.
Moreover, it features a spark arrestor and thus, may be used in forested areas.
Product Video
The Yamaha EF5500D versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF5500D compare to generators of similar power (between 4000 and 5000 W).
- A weight of 221.7 lbs makes the Yamaha EF5500D one of the heavier devices in the 4000-5000 rated wattage range. Regarding dry weight, one of the champions in the same power range is the Pulsar PG5250, with a dry weight of only 99.5 lbs.
- When compared to devices able to produce a similar running wattage, this generator and its lowest emitted noise of 74.1 dBA is on the noisier side. If noise emissions are important to you, one of the least noisy generators of this power range is the Yamaha EF4500iSE with only 58 dBA.
- As the EF5500D features an autonomy of around 13.5 hours at 50% load, it has a higher run time than an average generator of its power range. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Dewalt DXGN4500, boasting with around 15 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 generator reaches an estimated fuel consumption of 0.51 GPH (gallon per hour) at a 50% load, making it average, for the previously mentioned wattage range. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.33 GPH, the Pulsar PG5250B is a device you should look out for.
Price comparison
As you can see from this dynamic chart, when compared to other 4000-5000W generators, the Yamaha EF5500D 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
- In the expected price range
- High run time
- Decent fuel efficiency
- No electric start
- On the heavy side (221.7 lbs)
- On the noisy side (74.1 dBA)
Features and Specifications
General
| Inverter | No |
|---|---|
| Portable | Yes |
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 358 cc Yamaha MZ360 OHV 4-stroke |
| Starting system | Recoil |
Power
| Voltage | AC: 120/240V 60 Hz |
|---|---|
| Running watts | 4500 W |
| Starting watts | 5500 W |
| Running amps (@120/240V) | 37.5/18.8 amps |
| Peaks amps (@120/240V) | 45.8/22.9 amps |
| Run time @50% load | 13.5 h |
| Run time @25% load | N/A |
Features
| GFCI outlets | Yes |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | No |
| AC outlets | 2x Duplex 120V 20A (5-20R) GFCI 1x 120V 30A (L5-30R) 1x 120/240V 30A (L14-30R) |
| DC outlets | No |
| Data center | Lifetime run hours |
| Indicators | Low oil |
| Fuel tank | Metal, 6.9 gal |
| Fuel gauge | Yes |
Misc
| Weight | 221.7 lbs |
|---|---|
| Dimensions (L x W x H) | 21.9 x 29 x 31.5 in |
| Noise (lower limit) | 74.1 dBA |
| THD | N/A |
| Emissions | CARB, EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Tool kit |
| Warranty | 3 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 EF5500D 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.
Questions & Answers
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