Home > Inverter Generators >

Yamaha EF1000iS 1000 Watt Inverter Generator


EF1000iS
Customer Reviews


 
Gallery - Click images to open larger picture


  • Free Shipping Type
  • Yamaha Standard Warranty
  • Add a Yamaha Extended Warranty
Price: $779.00
NOTE: NOT ELIGIBLE FOR PURCHASE IN CALIFORNIA


   Current Availability: Item Discontinued
Product Code: EF1000IS
Qty:




Description Specifications Shipping & Terms
 

Genuine Factory New Yamaha Generators


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 CARB.
  • 49 state legal - Meets emission regulations, including CARB in all states except CA.
  • 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.
Inverter or Generator? What is the difference?
How to choose the right size Generator.
Yamaha Versus the Competition - WHY YAMAHA?

COMPATIBLE ACCESSORIES
Yamalube LUB-10W40-AP-12 Yamaha Deluxe Hour Meter & Tachometer - ENG-METER-4C-01 EF1000iS Yamaha Generator Cover
Price: $5.98

Add
Price: $43.50

Add
Price: $35.00

Add
LUB-10W40-AP-12 Yamaha Hour Meter - ENG-METER-4C-01 Yamaha Generator Covers

Average Rating: Average Rating: 4.5 of 5 4.5 of 5 Total Reviews: 40 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Great for quick lighting and media electronics March 26, 2021
Reviewer: Travis Jacobs from Hallettsville, TX United States  
I realize I could've had a 2000 watt version of this generator for just a little more money.  But I wanted something easy to start quick with a long run time just to get lights and media back up really quick.  This one does it, with less gas than all the rest.  It's quick to move and start up.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 review from Don Jones March 7, 2021
Reviewer: Donald Jones from Normandy Park, WA United States  
The order process, timeliness of shipping, and receipt of generator were perfect.  Thank you!

Was this review helpful to you?

  0 of 1 people found the following review helpful:
 
3 of 5 Works as advertised but not perfect November 13, 2020
Reviewer: Albert from Spokane, WA United States  
I bought this generator to charge the battery on a small travel trailer when off the grid.  It will work just fine in that capacity.  As a bonus it powers our home freezer which will come in very handy for extended power outages.  It doesn't have the capacity to power our refrigerator at (1,700 W) startup but that's not surprising given the specifications.

I am a little disappointed in noise level and the strong smell of the exhaust.  Prior to purchasing the generator I would hook up my vehicle to and let it idle, which was virtually silent and had very little odor.  While the little generator isn't noisy it is loud enough that everyone in the campground will hear it quietly running.  The smell is like an old lawn mower.  You won't want to stand down wind for very long.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 September 12, 2020
Reviewer: Doug Ericson from Southport, NC United States  


Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 September 3, 2020
Reviewer: STEVE RENEAU from KINSEY, AL United States  
Received generator no problem in 3 days


Was this review helpful to you?

View All Customer Reviews