Yamaha EF1000iS Review
The Ultimate in Portability and Reliability
The Yamaha EF1000iS generator is a great choice for people looking for a small and lightweight generator that’s portable and powerful enough for both domestic and business use. It is the lightest generator in its class, weighing only 27 lbs.
The EF1000iS can provide a 1000 Watt output that is fit for campers, travelers, boat owners, homeowners or for use in emergency situations. People who purchased it liked its quality and reliability. In almost every EF1000iS review, owners praised the generator for its clean energy, low noise-levels, fuel efficiency, and its user-friendly design.
The 50cc, 4-stroke air-cooled engine of the Yamaha EF1000iS runs on regular unleaded gas. The generator’s 0.66 gallon fuel tank has a wide opening to reduce the risk of refill spills and overflows. With the included charging cables, the generator can charge 12 volt DC batteries in case you need to charge your auto, RV, aircraft, or boat. It is very easy to operate – all you have to do is fill it up with gas, pour in the proper engine oil and give the starter cable a pull to get it up and running.
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Is the Yamaha EF1000iS Generator right for you?
Here are the benefits of the Yamaha EF1000iS Generator:
- The Yamaha EF1000iS is super portable and easy to operate because of its compact, lightweight and ergonomic design. The generator can easily be loaded in and out of a car or boat by almost anyone. The control panel is also accessible and simple to operate.
- This generator is very fuel efficient which will allow you to save on your fuel costs. At a 1/4 load capacity, the EF1000iS can run for 12 hours without any need to refuel. This is because of the automatic engine speed readjustment feature and its dual coil alternator which lowers the engine speed and fuel consumption.
- With the EF1000iS, you won’t have to be concerned about high-noise levels. The generator’s molded casing design, glass wool construction and muffler absorb loud sounds so it will run quietly without making any noise in your neighborhood.
- The Yamaha EF1000iS is very eco-friendly, and apt for eco-conscious consumers. It produces pure sine waves to produce cleaner electricity rather than using commercial power. The generator is safe to use with delicate appliances built with microcomputers since it would damage them if used with unrefined energy sources.
Yamaha Inverter Generators Features Video
What are People saying about the Yamaha EF1000iS Generator?
A quiet, powerful generator for multiple uses
I’ve used the Yamaha EF1000iS with friends while camping and been absolutely amazed. This model has a number of positives about it:
1 . It is really quiet. When there is a small load on the generator it slows down the engine. This not only makes it quiet, it cuts back on fumes, and saves gas. A tank filling can last half a day easily depending on demand.
2 . Clean power-because the alternator is outputting a DC voltage into a sine wave inverter your 110 AC is coming from one of the best sources. Since the inverter tells the throttle how much power it needs, wasted noise and gas are eliminated.
3. Light weight- compared to taking a 5000W generator camping, the small size and light weight are a welcome change.
4 . Very small gasoline consumption-unless you are running the full 1000W all the time you’ll get great mileage.
5. Well built engine- although only 50cc, it has overhead valves and excellent sound isolation.
H.M. – Yamaha EF1000iS Review
Excellent GeneratorThe Yamaha EF1000iS is quiet and it is a very good gas saver. We use our generator for a 250 watt average load. With that load, the economy saver feature on this generator allows its 0.6 gallon tank to last a little over 12 hours!! It is extremely quiet, just slightly louder than that of a good refrigerator.
S. Stewart – Yamaha EF1000iS Review
Nice Compact GeneratorI love the size of the Yamaha EF1000iS, its perfect for my camper. For getting power where there is none, this generator is going to be just fine.
All in all, a quality piece of equipment. I would recommend this to a friend.
Stephen D. Feist – Yamaha EF1000iS Review
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Here are the reported cons of the Yamaha EF1000iS:
- A few consumers reported that they couldn’t power multiple high power appliances simultaneously into this generator. They figured out however that the load they were placing on the generator was in excess of its 1,000 watt capacity.
- Some people reported that under maximum load the generator runs louder than under lower loads. In those cases the issue can be resolved by distancing the generator a bit farther away for a quieter experience.
Do you own a Yamaha EF1000iS? We would love to get your feedback on this product. Submit your review or feedback to the Save A Ranch team by using the Contact Us link.
The Ultimate in Portability and Reliability
The Yamaha EF1000iS generator is a great choice for people looking for a smal…





