The YG2800i is a brushless inverter model from Yamaha’s industrial line. It has a strong output, is quiet, and has a lot to offer. This is perfect for powering tools, lights, and other equipment on the job site. Its 2800 watts is a strong output for a small/ mid sized generator and Yamaha includes many additional features that add ease and convenience to both start up and operation of the YG2800i.
Yamaha gives the YG2800i a 171 cc 5.5 hp OHV engine with the ability to produce maximum of 2800 watts. It has a max AC current of 20.8/ 23.3 amps @ 120V. In addition, it has a DC output primarily for charging batteries.
In addition, the YG2800i features a sixteen-pole alternator, twenty-four coil stator which improves performance and reduces size. It has an inverter system with pulse width modulation that ensures a steady stream of power. At 66 pounds, it is very light and easily mobile. Its oil watch system protects against engine damage. The non-fuse AC thermal breaker is another safety tool to prevent overload. Its muffler reduces levels to a range between 60-67 dBA.
Often a generator’s runtime is a very important factor. Refueling is just another task on the job site. Longer runtimes increase efficiency and eliminate unnecessary delays. Many smaller generators have small tanks and short runtimes; however, the YG2800i offers convenience with a lengthy 12.9 hours @ ½ rated load on one full 3.0 gallon tank. This is largely due to the economy control feature, which increases fuel efficiency by lowering engine speeds.
Yamaha backs the YG2800i with a one year limited warranty.
Specifics cited from:
http://www.yamaha-motor.com/outdoor/products/modelhome/455/0/home.aspx
Yamaha’s EF3000iSE/B provides clean high power at low noise levels. There is the EF3000iSE model for those who are looking for a quiet yet powerful generator. However, the EF3000iSEB model is for those who need more. It has boost technology to increase power by using a battery connected to the alternator. This brings the total max AC output to 3000 watts. There is also a 12V 12 amp DC output, which is commonly used to charge batteries.
The EF3000iSE/B is powered by an OHV 171 cc, 5.5 hp engine designed to be durable, offer high output, and to run for lengthy periods of time. And, this generator can do just that with a runtime of 20.5 hours @ ¼ rated load on its 3.4 gallon tank without refueling. In addition to its impressive runtime, it is also very quiet at 51- 57 dBA. This enables it to be used in a variety of settings. Weighing 147.4 pounds, it is not extremely light. However, its well crafted design allows for easy transport.
It comes with an electric start option to add convenience. The inverter system with pulse width modulation control ensures a clean energy output. It has an oil watch system to prevent engine damage. The Noise Block feature significantly reduces the overall loudness during operation.
Specifics cited from:
1. http://www.yamahageneratorstore.com/EF3000iSE.htm
2. http://www.yamaha-motor.com/outdoor/products/modelhome/444/0/home.aspx
Yamaha’s 2007 Inverter EF2400iS is a quiet and lightweight generator that produces 2400 watts and has the capability to be connected to another EF2400iS for a total AC output of 4600 watts. This is excellent for powering many devices including RV AC units. It is not very loud at 53- 58 dBA and should not bother people even at short distances. Noise levels are often a large concern when operating in close or crowded areas and many other generators are quite loud. This is definitely an advantage of the EF2400iS. Another one is its size. Weighing only 70 pounds makes it convenient to transport and operate in confined areas.
Its OHV, air-cooled, single cylinder engine has 171 cc of displacement and 5.5 hp. The max AC output is 2400W while the rated AC output is 2000W. It also has a 12V DC outlet for charging batteries.
This model comes equipped with an auto decompression system to ease starting. Yamaha’s smart throttle regulates engine speed to increase efficiency by reducing fuel consumption. This enables operation for up to 8.6 hours @ ¼ rated load. There is a multipole alternator, fuel gauge, oil watch to prevent engine damage, and an electrical overload breaker for safety. A muffler, rubber vibration isolation feet, and Noise Block are implemented to reduce noise levels. Its inverter system with pulse width modulation control cleans the electricity for use with microcomputer devices.
Specifics cited from:
1. http://www.yamahageneratorstore.com/ef2400is.htm
2. http://www.yamaha-motor.com/outdoor/products/modelhome/475/0/home.aspx