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Yamaha EF1000iS 1000 Watt Inverter Generator
EF1000iS
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Free 1-Year Warranty
Price: $791.10


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The 1000 Watt EF1000iS weighs in at 27.9 pounds, making it extremely portable. Among the quietest portable generators in its class, the EF1000iS features Smart Throttle which allows greater fuel efficiency and noise reduction. It will run up to 12 hours at ¼ rated load on a tank of gas. With features such as Pulse Width Modulation, Auto Warm-Up, and an Oil Watch Warning System, the EF1000iS is the most portable, efficient inverter you can buy!

TOP FEATURES:

  • Yamaha generators have the longest emission engine durability ratings issued by the Environmental Protection Agency and the California Air Resources Board.
  • The EF1000iS weighs in at 27.9 pounds, making it extremely portable.
  • Noise Block is Yamaha’s acoustically engineered sound reduction system which helps make the EF1000iS among the quietest portable generator in its class. (47 dBA to 57 dBA – ¼ rated to rated load).
  • Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems.
  • The EF1000iS features Smart Throttle, a load sensing rpm control that allows greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load. It will run up to 12 hours at ¼ rated load on a tank of gas.
  • The Yamaha EF1000iS inverter generator supplies clean, high quality power. The EF1000iS – with its inverter system – features Pulse Width Modulation (PWM) so voltage stability is within ± 1%, and frequency stability is ± 0.1 HZ. Its pure sine wave is as clean as or cleaner than public utilities power.
  • The Auto Warm-up feature automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups.
  • Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind.

ADDITIONAL FEATURES:

  • Lightweight, easy to carry design ‐ Compact lightweight alternator reduces weight to 27.9 lb., the lightest weight in its class.
  • Smart Throttle, load sensing rpm control - Greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load.
  • Auto Warm-up - Automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups.
  • 12 Volt DC output, battery-charging cables included - Recharge 12-volt batteries for RV, auto, marine, etc.
  • Exclusive dual coil alternator stator - Greater output at a lower engine speed for reduced noise, fuel consumption, and engine wear.
  • Centralized control panel - Easy access to controls.
  • Gasoline petcock lets you shut off the gas to run the carb dry for storage - Prevents stale gas problems.
  • 50cc Overhead Valve (OHV) engine - Noise-reducing operation with improved efficiency, increased reliability, and low oil consumption.
  • Large fuel fill access - Wide mouth fuel fill reduces spilling and overflows during refueling.
  • EPA & CARB Emission Engine Durability Rating - Yamaha generators have the longest emission engine durability ratings issued by the Environmental Protection Agency and the California Air Resources Board.
  • 50 state legal - Meets emission regulations, including CARB.
  • Factory Warranty - Covers the entire generator for defects in parts and workmanship for three (3) years when the generator is used for non commercial, industrial or rental use. When the generator is used for commercial, industrial or rental use, Yamaha covers the generator for two (2) years.
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Average Rating: 4.5 of 5 Total Reviews: 27 Write a review »

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  0 of 0 people found the following review helpful:
 
Yamaha EF1000iS review August 31, 2017
Reviewer: bob Griffith from Seattle, WA United States  
I am very disappointed by the noise level of this gen., it is much louder than my Honda 2000. The exhaust is much too loud and it has a loud irritating whine. I also noted that the armature is exposed which concerns me because we use our gen a lot in the rain. I am thinking of  changing to a Honda. Can you trade?

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  0 of 0 people found the following review helpful:
 
excellent product July 4, 2017
Reviewer: LANNY gill from west valley city, UT United States  
I HAVE COPD AND LOVE TO CAMP.  WENT CAMPING OVER THE WEEKEND, RAN MY LITTLE GENERATOR  24X7 FOR 5 FULL DAYS, WOULD RUN FOR OVER 10 HOURS ON ONE TANK OF GAS, QUIET AND WORKED GREAT....

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  0 of 0 people found the following review helpful:
 
Accurate Order with Fast Shipping May 26, 2017
Reviewer: Michael Gosson from Syracuse, NY United States  
I placed an order for a Yamaha EF1000 generator / invertor and was pleasantly shocked how fast the unit arrived. In the carton was the Yamaha along with (1) quart of Yamalube and small bottle of fuel stabilizer.

After I received mine, filled it with oil and fuel, test ran it for 30 minutes and called my friend to advise him of my experience. He placed an order the next day.


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  0 of 0 people found the following review helpful:
 
Extra goodies May 17, 2017
Reviewer: Tom Spurlock from YORBA LINDA, CA United States  
I'm very pleased with my generator  purchase from National.  It arrived quick, got an extra year warranty from Yamaha, and I got the oil and charging cable too. Communications were clear how to get it registered for the extra warranty.  Good experience.

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  0 of 0 people found the following review helpful:
 
Light Weight and Quiet!!! March 30, 2017
Reviewer: My Baker  
We purchased this generator to take with us when we go to fly-in camp grounds. The light weight is essential when loading a small plane, and the scalable tank vent and fuel valve keep gas fumes out of the cabin!!

Great service, great price, fast shipping, and quality products!!

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