Yamaha EF4500iSE

Yamaha EF4500iSE

Yamaha EF4500iSE

$3,399.00 $3,059.00

The Yamaha EF4500iSE portable generator is one of the few inverter generators with an electric start in the Yamaha lineup. It is known to give a clean output of power that amounts to 1000W. Other than that, the unit is CARB certified and good for use in the US and the European Union.

SKU: 18 Category:

Product Description

It is no secret that Yamaha generators are known for their efficiency and reliability. Hence, it shouldn’t come as a surprise that the Yamaha EF4500iSE follows suit. And this can also be traced back to very fact that Yamaha is known to use the latest technology in the design of it’s generators. Additionally, past tests have proven that the output from the Yamaha EF4500iSE is one the cleanest with the least amount of harmonics, a factor that makes it suitable for use with most if not all types of sensitive equipment.

Power generation and output

Yamaha EF4500iSE portable generator is fitted with a 375cc Over HV air-cooled 4-stroke single cylinder engine. The engine is capable of amassing up to 4000 watts of raw power and a continuous surge of over 315V steady current supply. What’s more, the engine can between 1000rpm and 4000rpm depending on the wattage required by the user. This is turn help to reduce noise output and fuel consumption.

Starting method

Unlike the previous generations of Yamaha inverters, the EF4500iSE generator has only an electric switch for starting or halting the unit and no rope recoil method like in the past. In case you’re wondering how that came about, the rope recoil method was effectively replaced by an 18 amp, 12-v DC battery to power the starting unit. However, it’s advisable to keep this replaceable battery unit always charged up in case of any emergency.

The outlet configuration

For starters, remember that the Yamaha EF4500iSE portable generator can be used for both AC and DC output. The two can be obtained from the respective 5-20R and L5-30, with the latter supplying an alternating current of a steady 240V. Now, the 5-20R has a circuit breaker and can supplying a steady DC power of approx 30 amps at any given time. Nonetheless, bear in mind that AC component of the L5-30 is limited to approx 2000W to prevent the unit from overheating.

Noise levels and fuel types

The Yamaha EF4500iSE portable generator, like most inverters nowadays utilizes gasoline for its operation. The fuel tank has a capacity of more than 4.5 gallons and can run for over 15 hours when pegged at a 25% load. This also means that at a 50% load, the generator can run for 7.5 hours with a full tank of gas.

As far as noise is concerned, the Yamaha utilizes superior noise-blocking technology to keep the sound within acceptable limits. So, compared to other generators within this price range, the Yamaha EF4500iSE portable generator runs rather quietly. On average, in normal operation expect between 60 to 70db when supporting a significant load. Otherwise, at a quarter or a third load, the noise is estimated to be within the range of 45 to 50 decibels.


If you’re in the market for a smooth running, budget-priced and compact generator, the Yamaha EF4500iSE is without a doubt one of the few that fit that bill. For more info visit House of Generators.