Product Name: EF1000iS inverter / generator 1KW
Model Number: EF1000iS Yamaha Generator
Manufacturer: Yamaha
  • 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)
  • 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.
  • Features
    • Lightweight, easy to carry design — Compact lightweight alternator reduces weight to 27.9 lb., the lightest weight in its class.
    • Noise Block, acoustically designed sound reduction system — Molded casing, glass wool insulation, and an advanced designed muffler provide unbeatable noise reduction.
    • 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.
    • Inverter system with Pulse Width Modulation (PWM) control — Can run products with built-in microcomputercontrolled electric tools.
    • 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.
    • EPA & CARB Emission Engine Life Rating — Yamaha generators have the longest emission engine life ratings issued by the environmental Protection Agency and the California Air Resources Board.
    • 50 state legal — Meets emmision regulations, including CARB.


    Usual Ship Time: 1 day

    Regular Price:  $879.00 
    Your Price: $799.00 EA
    You Save: $80.00 (9%)
    Free Grd Shipping USA
    Watts 850 W 
    Voltage 115 V 
    Frequency 60 Hz 
    Motor Gas Engine 
    Motor Amps 13.3 A 
    Warranty 3 Year/s 
    Applications Contractor 
    Other Max. / Rated AC Current: 16.7 / 13.3 amps @ 120v. PARALLEL CABLE SAME AS HONDA EU2000i.

    Specifications Type Brushless Inverter Maximum AC Output 2000 watts Rated AC Output 1600 watts Rated / Maximum AC Current 16.7 / 13.3 amps @ 120V Engine OHV, Forced Air-Cooled, Four-Stroke, Single Cylinder Displacement 79cc Overall Length 19.3 in Overall Width 11.0 in Overall Height 17.9 in Dry Weight 44.1 lb Fuel Tank Capacity 1.1 gallons Continuous Operation at 1/4 Rated Load 10.5 hrs Noise Level 51.5 - 61 dBA Warranty 3 Years Limited Warranty  

    Approvals CARB 
    USFS Muffler 
    Low Oil Shutdown Yes 
    Country of Origin Japan 
    Duty Continuous 
    product compare
      Honda EU2000i - 1600 Watt Portable Inverter Generator Yamaha EF2000iS - 1600 Watt Inverter Generator
    Model Number EU1000iA EF1000IS(current)
    Manufacturer Honda Yamaha
    Grade Recreational Recreational
    Style Portable Portable
    Rated Watts 900 900
    Surge Watts 1,000 1,000
    Voltage 120 Single-Phase 120 Single-Phase
    Frequency 60 Hz 60 Hz
    Auto Voltage Regulation N/A Yes
    Neutral Type Floating N/A
    Rated Amps 8 9
    Engine Brand Honda GX Yamaha
    Start System Recoil Start Recoil Start
    Battery N/A Not Included
    HP / CC 50 cc 50 cc
    Consumer Warranty 2 Years 3 Years
    Commerical Warranty 1 Year 1 Year
    Low Oil Alert Yes Yes
    Cast Iron Sleeve N/A Yes
    Idle Controls N/A Yes
    Fuel Type Gasoline Gasoline
    Fuel Tank Material plastic Resin Plastic
    Gas Tank Size .6 Gallons .66 Gallons
    Fuel Gauge No Yes
    Run Time 4.2 Hours 8 hours
    Control Panel
    Hour Meter No No
    Voltage Meter N/A No
    Plugs 1 - 8.3-Amp DC
    1 - NEMA 5-15R
    1 - 10-Amp DC
    1 - NEMA 5-20R
    Lifting Eye No No
    Decibel Rating @ 7m 59 db(A) 51 db(A)
    Weight 29 lbs. 28 lbs.
    Dimensions 17.7"L x 9.4"W x 15"H 17.7L x 9.4W x 14.9H
    Consumer Warranty 2 Years 3 Years
    Commerical Warranty 1 Years 1 Years
    Availability In Stock In Stock
    Price $927 $879
    Alternator Brushless Inverter 
    Auto Voltage Regulation Yes 
    Run Time 8 Hrs @ 50% 
    Fuel Tank Size .6 
    Noise Decibel Rating 47-57dbA 
    Smart Throttle (Auto speed) Yes 
    Starting System Recoil w / auto decompression 
    EPA Rated Life 300 Hrs. 
    Weight 28 lbs
    Jump to the first pageJump to the previous page Jump to the next pageJump to the last page
    Ammeter Wattmeter 115v
    Manufacturer: Yamaha
    Model Number: THP103 AmWatt
    $3995 ea.
    Voltage: 115 V
    Phase: 1
    Manufacturer: Yamaha
    Model Number: ENG-METER-2C-01
    $4400 ea.
    115/230v Single phase 30A
    Manufacturer: Generic Pumps
    Model Number: 31406CRK
    $34900 ea.
    Voltage: 115/230 V
    Phase: 1
    115/230v Single phase 30A
    Manufacturer: Generic Pumps
    Model Number: 31410CRK
    $46500 ea.
    Voltage: 115/230 V
    Phase: 1
    Ask Henry - Interactive Pump Selector
    Contact Us:


    Hot Buys

    Pump News

    State of the art Float switches

    PumpBiz offers modern Electronic float switches that no longer have problem causing moving parts. Features include alarms, lights,phone calls and alternators. They are easy to install and fit just …

    Read More

    Propane BI-FUEL upgrade Kit

    Trucks, cars, and other vehicles as well as other Small engines running on our propane conversion systems have been proven to have 80% cleaner emissions and help the engine last longer than those …

    Read More

    Flex Pump™ Dewatering Trash

    Submersible Trash pump engine powered*. Flex-Pump is a submersible dewatering pump without electricity. Customers who have used it are so impressed they are calling it a "Muddy …

    Read More

    © 2000 - 2015 PumpBiz, Inc.  •  PumpBiz offers open accounts  •  All major credit cards accepted & PayPal  •  PumpBiz is a registered trademark of PumpBiz, Inc.