Yamaha’s YG6600D is similar to the YG5200D. However, it offers more power at 6600 watts and features automatic voltage regulation, while retaining most of the specs common to the YG5200D. If you are looking for a steady stream of high and clean power, this is an excellent choice.

The YG6600D comes equipped with a large 12 hp 357 cc OHV engine. This produces an AC current of 50/ 55 amps @ 120V and 25/ 27.5 amps @ 240V. Its high power output makes the YG6600D ideal for the job site. It can power a variety of devices ranging from lights, saws, drills, to even small refrigerators. One can even use an extension cord with this model to give you that much needed extra distance.

The YG6600D can operate on both 120V and 240V. Its brushless alternator increases reliability and durability. Often generators can interfere with electronics. However, Yamaha offers a solution. The YG6600D’s noise suppressor significantly reduces interference with electronics so that one can use nearby devices such as televisions. The auto decompression feature and the transistor controlled ignition add ease to the start up process. Once started, the economy idle conserves fuel thereby allowing for a continual operation of up to 8.3 hours @ ½ rated load on its 5.5 gallon tank. At 8.3 hours, it can last for a while without refueling which comes in handy on job sites where time is an immediate concern.

Job sites can already be a dangerous environment; consumers should not have to worry about the safety of their generator and surrounding workers. That’s why Yamaha provides an oil watch system, AC non-fuse thermal breaker, spark arrestor, and a ground fault interrupter to eliminate any unfortunate problems.

At 73.5 dB, the YG6600D is quiet loud. This may annoy surrounding neighbors; therefore, it is advised to isolate it from others. Although loud, 73.5 dB should still be easily tolerable by most (especially if it is isolated).

Yamaha insures this model with a one year limited warranty.

Specifics cited from:

http://www.yamaha-motor.com/outdoor/products/modelhome/458/0/home.aspx