Yamaha EF1000iS - 900 Watt Inverter Generator

Yamaha EF1000iS - 900 Watt Inverter Generator
Model: EF1000IS
(Based on expert analysis, manufacturer ratings and customer reviews)
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
Number of Reviews (32)
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$791.10
Only 2 In-Stock
Ships Friday, Sep 21st
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Only 2 In-Stock
Ships Friday, Sep 21st
Free Shipping
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  • Product Description
  • 32
    Reviews
  • 6
    Product Q&A
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+
Grade
Style
Run Watts
900
Rated Watts
Surge Watts
1,000
Starting Watts
Fuel
Engine
Grade
Recreational
Style
Portable
Run Watts
900
Surge Watts
1,000 Starting Watts
Fuel
Gasoline
Engine
Yamaha


Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Features
Features
  • 1,000 Max Rated Watts
  • Generator can produce 1,000 watts for up to 20 minutes
  • Rated at 900 watts for continuous operation over 20 minutes
  • Inverter Technology
  • Safely power computers and sensitive electronics
  • Extremely Lightweight (27 lbs)
  • Easy to take tailgating, camping, hunting, etc
  • Smart Throttle™
  • Engine speed varies based on load
  • Very Quiet (47-57 decibels @ 7 meters)
  • Power your stuff without disturbing your neighbors
  • 12-Volt DC Output (Cables Included)
  • Recharge 12-volt batteries for RV, auto, marine, aircraft, etc
  • Exclusive Dual Coil Alternator
  • Lowers engine speed and wear, reduces noise, fuel consumption
  • Oil Not Included
Specifications
Plugs
10-Amp DC
NEMA 5-20R (Wall-Type)
Engine
Engine Brand
Yamaha
Starting System
Recoil Start
CC
50 CC
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
2 Years
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120 Single-Phase
Frequency
60 Hertz
Alternator
Inverter
Auto Voltage Regulation
Yes
Surge Watts
1000 Watts
Rated Watts
900 Watts
Fuel Type
Gasoline
Rated Amps
8 Amps
Tank Size
0.66 Gallons
Run Time @ 50% Load
8 Hours
Fuel Tank Material
Plastic
Fuel Gauge
No
Decibel Rating @ 7m Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
47-57 dbA
Idle Control
Yes
Hour Meter
No
Voltage Meter
No
Lifting Eye
No
Neutral Type
Floating
Battery
Not Applicable
Grade Type
Recreational
Plugs
10-Amp DC
1
NEMA 5-20R - Wall-Type
1
Overview
Made in USA
No
Weight
28 Pounds
Product Style
Portable Generator
Product Length
17.7 Inches
Product Width
9.4 Inches
Product Height
14.9 Inches
Consumer Warranty
3 Years
Commercial Warranty
2 Years
UPC
827624825396
Grade
Style
Run Watts
900
Rated Watts
Surge Watts
1,000
Starting Watts
Fuel
Engine
Grade
Recreational
Style
Portable
Run Watts
900
Surge Watts
1,000 Starting Watts
Fuel
Gasoline
Engine
Yamaha


Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Features
Features
  • 1,000 Max Rated Watts
  • Generator can produce 1,000 watts for up to 20 minutes
  • Rated at 900 watts for continuous operation over 20 minutes
  • Inverter Technology
  • Safely power computers and sensitive electronics
  • Extremely Lightweight (27 lbs)
  • Easy to take tailgating, camping, hunting, etc
  • Smart Throttle™
  • Engine speed varies based on load
  • Very Quiet (47-57 decibels @ 7 meters)
  • Power your stuff without disturbing your neighbors
  • 12-Volt DC Output (Cables Included)
  • Recharge 12-volt batteries for RV, auto, marine, aircraft, etc
  • Exclusive Dual Coil Alternator
  • Lowers engine speed and wear, reduces noise, fuel consumption
  • Oil Not Included
Specifications
Plugs
10-Amp DC
NEMA 5-20R (Wall-Type)
Engine
Engine Brand
Yamaha
Starting System
Recoil Start
CC
50 CC
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
2 Years
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120 Single-Phase
Frequency
60 Hertz
Alternator
Inverter
Auto Voltage Regulation
Yes
Surge Watts
1000 Watts
Rated Watts
900 Watts
Fuel Type
Gasoline
Rated Amps
8 Amps
Tank Size
0.66 Gallons
Run Time @ 50% Load
8 Hours
Fuel Tank Material
Plastic
Fuel Gauge
No
Decibel Rating @ 7m Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
47-57 dbA
Idle Control
Yes
Hour Meter
No
Voltage Meter
No
Lifting Eye
No
Neutral Type
Floating
Battery
Not Applicable
Grade Type
Recreational
Plugs
10-Amp DC
1
NEMA 5-20R - Wall-Type
1
Overview
Made in USA
No
Weight
28 Pounds
Product Style
Portable Generator
Product Length
17.7 Inches
Product Width
9.4 Inches
Product Height
14.9 Inches
Consumer Warranty
3 Years
Commercial Warranty
2 Years
UPC
827624825396
Product Specs
+
Specifications
Plugs
10-Amp DC
NEMA 5-20R (Wall-Type)
Engine
Engine Brand
Yamaha
Starting System
Recoil Start
CC
50 CC
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
2 Years
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120 Single-Phase
Frequency
60 Hertz
Alternator
Inverter
Auto Voltage Regulation
Yes
Surge Watts
1000 Watts
Rated Watts
900 Watts
Fuel Type
Gasoline
Rated Amps
8 Amps
Tank Size
0.66 Gallons
Run Time @ 50% Load
8 Hours
Fuel Tank Material
Plastic
Fuel Gauge
No
Decibel Rating @ 7m Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
47-57 dbA
Idle Control
Yes
Hour Meter
No
Voltage Meter
No
Lifting Eye
No
Neutral Type
Floating
Battery
Not Applicable
Grade Type
Recreational
Plugs
10-Amp DC
1
NEMA 5-20R - Wall-Type
1
Overview
Made in USA
No
Weight
28 Pounds
Product Style
Portable Generator
Product Length
17.7 Inches
Product Width
9.4 Inches
Product Height
14.9 Inches
Consumer Warranty
3 Years
Commercial Warranty
2 Years
UPC
827624825396
Reviews
(32)
+
Yamaha EF1000IS Reviews & Ratings
90% of Reviewers Recommend This Product
Product Q&A
(6)
+
Search Product Q&A's Answered by Jim, the Portable Generator Expert
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+
Does this Yamaha generator use mixed gasoline?
Pete 
from New York 
February 08, 2017
Answer
Yamaha recommends using 86 Octane fuel or higher. This unit does not require any mixing of gasoline or oil. Owner's Manual.
+
Can this be converted for propane use?
Peter G. 
from California 
December 15, 2016
Answer
Yamaha does not offer a fuel conversion for any of their generators and adding an aftermarket one will void the warranty.
+
Is the Yamaha 1000is generator USFS compliant? I want to use on forest service land. Spark arrestor etc.? Ditto for the 2000 model. Thank you Don
Don 
from Washington 
October 09, 2013
Answer
Thank you for your inquiry....

Yes, the Yamaha inverter generators meet all USFS requirements and they all include spark arresters.
+
What does ECON stand for on the switch? While running the generator what position should if be in? Thanks Mark
Mark Babin 
from Louisiana 
February 08, 2012
Answer
ECON stands for Economy mode and the generator will alter the engine RPM based on the load on the unit giving it a quieter output and use less fuel.

The standard running mode keeps the unit running at top RPM for heavy loads keeping the output at its highest.
+
How much oil does the Yamaha EF1000IS hold?
 
from  
April 21, 2011
Answer
The Yamaha EF1000IS holds 0.34 quart oil.
+
I am buying a Yamaha 1000is from you. If I plan to not use the generator for a period of 4 months, so I just have to use Sta-Bil in the fuel and I am fine? Or do you recommend a draining procedure between uses, or some other kind of procedure?
Mitch Carter 
from California 
January 24, 2011
Answer
We definitely recommend the use of Sta-Bil fuel stabilizer in your generator as it will keep your fuel fresh for up to 2 years. We do recommend that you start the generator once a month to lubricate the internal parts in the system and also throw a small load on it to verify good operation.
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How-To Articles
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Manuals
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