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Yamaha Ef2000isv2 Review

Yamaha Eef2000isv2 Review

Yamaha EF2000iSv2 is a great little generator from this very well known manufacturer which comes with a host of unique features which are sure to impress. Nearly everyone can use a portable generator at some point – some people may find that they get a lot of use out of a little generator like this, such as if you regularly go fishing on a small boat and require power to run some small appliances on the boat. Even those of you who go camping once or twice a year are sure to get a lot of value from this product.

This Yamaha EF2000iSv2 Review is based on a very expensive generator, but also one which comes packed with some great features. If you’re shopping on a budget then you may want to look at some of the other brands which are reviews on this website – however if you need the absolute best then please read on.

Running Watts

The running watts of a portable generator not only affect how much power you will need to use to run the generator (whether it be battery or fuel) but it will also affect how many appliances you can run at any one time. It is very important to consider how many watts of electricity you’ll need to comfortably run all of your appliances. For example, let’s imagine that you were camping and you need a suitable portable generator – you may want need to run cooking appliances and lighting all at once in the evening time and this will probably be the most electrically intensive time of the day. So what you need to do is add up the wattage of all the appliances which you’ll need to use simultaneously and then ensure that the generator which you choose can produce enough wattage to run all these appliances.

Yamaha EF2000iSv2 comes with 1,600 watt rated AC output and a maximum 2,000 watt AC output.

Engine Specifications

I’ll now move this Yamaha EF2000iSv2 Review right along to discuss the engine specifications. This generator from Yamaha comes with an air-cooled, single cylinder, 4-stroke engine which can produce up to 2,000 watts of electricity as mentioned above.

Fuel Tank Capacity

The tank in this Yamaha ef2000isv2 is quite large as it can hold 1.1 gallons of fuel. The Yamaha ef2000isv2 engine is designed to be very efficient with fuel consumption and heat dissipation which allows for both long life and optimal fuel consumption.

Maximum Run Time

As I mentioned above this Yamaha ef2000isv2 is specifically designed to be very efficient with fuel which allows it to run for quite a long time while operating in economy mode. One feature which makes Yamaha ef2000isv2 so efficient is its Smart Throttle Load feature – this allows the generator to dynamically adjust engine speed depending on the required output which means that less fuel is burned during time of low dependance, saving fuel.

 Yamaha EF2000iSv2, 1600 Running Watts/2000 Starting Watts, Gas Powered Portable Inverter, CARB CompliantGet More Info

Starting Method

All you have to do to start the EF2000iSv2 is flick the little switch on the front of the generator to “on” and then pull the draw cord to get it up and running. This definitely isn’t the easiest starting method out there as it actually requires some effort to get the engine going – but it’s also not the most difficult starting method either. In fact because the engine is quite small it makes actually pulling the draw cord fairly effortless.

Operating Noise

Something which is very important when it comes to choosing a generator is how loud it is, so that’s the next thing which I shall discuss in this Yamaha EF2000iSv2 Review. With it’s perky little engine, Yamaha ef2000isv2 operates at 51.5-61 dBA.

There is a special sound-blocking design which is used by Yamaha to ensure that this appliance runs as quietly as possible. The generator features a noise-absorbing glass wool construction as well as a quiet muffler and vibration-isolating feet which help keep the noise which is produced by it to a minimum.


There are two AC outlets on Yamaha ef2000isv2 which are used for charging most appliances as well as a DC outlet which allows you to charge batteries as well – a very nice addition.


This portable generator from Yamaha is CARB compliant.


This is a small and compactly designed little generator, here are it’s basic dimensions;

  • Length: 19.3 in
  • Width: 11.0 in
  • Height: 17.9 in
  • Weight: 44.1 lb

Additional Features

One feature which I think really stands out and which should be mentioned in this Yamaha EF2000iSv2 Review is something which Yamaha call TwinTech technology. Basically this allows you to connect two EF2000iSv2 portable generators together in order to harness the power of both the units at once – for that extra boost of added output.


To be honest, there’s no real accessories which come included with Yamaha ef2000isv2. But with that being said, you don’t really need any accessories either as it’s simply a matter of fueling the unit, plugging in your appliance which requires power, and away you go!

 Yamaha EF2000iSv2, 1600 Running Watts/2000 Starting Watts, Gas Powered Portable Inverter, CARB CompliantGet More Info


  • 2,000 watts maximum output.
  • Very long operational time at 1/4 load, at 10.5 hours you will have plenty of time to use before needing to refuel it.
  • Brand name which you can trust – Yamaha.
  • Innovative TwinTech technology which allows you to harness the power of two EF2000iS’s at once for additional output.
  • Ability to recharge batteries with a DC output.
  • Compact and neat design.
  • Exceptional Fuel Efficiency.


To be perfectly honest there really aren’t all that many cons when it comes to Yamaha ef2000is;

  • The only thing which I can think to mention as a con of this product is that there have been reports from customers that the Yamaha customer services aren’t really that good at all and seems to have left a few of these customers a little annoyed when they needed some issues with their units resolved. For a generator of this price, a higher level of customer service is expected!

Customer Ratings

Yamaha ef2000isv2 has good rating above 4 out of 5 star from more than 400 review.


The last thing which I will discuss in this Yamaha EF2000iSv2 Review is the price of the unit.This really isn’t a cheap portable generator at all. In fact I would go so far as to say that it’s the most expensive which I have ever seen – however it is also most probably the best portable generator which I have ever seen as well. With so few cons to be mentioned and so many positive customer reviews you can be sure that this product will not let you down. If you need the best in terms of reliability, fuel efficiency, and overall quality then you should seriously consider the Yamaha EF2000iSv2.

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