Yamaha EF1000iS (1000 watt) Inverter Generator

Yamaha EF1000iS (1000 watt) Inverter Generator

$1,695.00 inc GST
(3 reviews) Write a Review
21.00 KGS

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The Yamaha EF1000iS is light weight and user friendly.  Its small compact design has a lot to offer while producing high-quality, clean power.

The 50cc 4-stroke OHV air cooled single cylinder engine has a max AC output of 1000 watts.  The engine speed is variable and automatically adjusts to precisely match load, this results in greater fuel efficiency and noise reduction.  With a large fuel tank the Yamaha EF1000is can run up to 12 hours. Weighing in at only 12.7 kgs this machine is versatile and light weight. A 4 year warranty backs up the EF1000is; insuring years of care free use. 

The Yamaha EF1000is was built for the outdoors. It is great for RV owners and outdoors enthusiasts alike. With enough power to run a television and a microwave the EF1000is is sure to improve your next outing. The EF1000is is quite at only 47dbA. Feel confident that you want disturb nature or fellow campers when the Yamaha EF1000iS is in use. Make your campsite a much more comfortable place to be with this portable inverter generator.

This portable generators is more practical than onboard generators. Onboard generators contribute more smog forming emission in the atmosphere than the smaller energy efficient Yamaha EF1000iS.  The fuel petcock reduces carburetor contamination by turning off gasoline flow and allowing the carburetor to run dry.  A wide mouth fuel fill reduces spilling and overflow during refueling.

The Yamaha EF1000IS portable inverter generator is easy to store and simple to use. This little beast puts 1000 watts of power at your finger tip via the easy access control panel. The unit can also recharge 12 volt batteries for RV, auto, and marine with a DC output of 8 amps. Oil Watch is an oil monitoring system. This feature prevents engine ware by alerting you of low oil pressure in the engine. Oil Watch is just one of the many features that Yamaha provides to ensure the quality of its products.


Lightweight Design / Easy to Carry - The EF1000iS Newly designed exterior and compact lightweight 
inverter unit reduces weight to 12.7 kgs. Lightest weight generator in its class.

Noise Block Acoustically designed sound reduction system - Molded casing, noise-absorbing glass wool construction and a newly designed muffler produce unbeatable noise reduction.

Long Run Time - The Yamaha EF1000iS Runs continuously for up to 12 hours without refueling (at 1/4 load with "Economy Control" function on).

Smart Throttle Load sensing throttle control - The EF1000iS Automatically adjusts engine speed to precisely match load, resulting in greater fuel efficiency and noise reduction.

12 Volt DC Output (Battery Charging Cables Included) - Recharge 12 volt batteries for RV, auto, marine, aircraft, etc.

Inverter System with Pulse Width Modulation - Industry-leading system produces higher-quality and cleaner electricity. Results in pure sine wave as clean or cleaner than commercial power and can operate products with built in microcomputers.

Exclusive Dual Coil Alternator Stator - Lower engine speed. Reduced noise, fuel consumption and engine wear.

Centralized Control Panel - The EF1000iS Control panel enables easy access to controls.

Fuel Petcock - Reduces carburetor contamination by turning off gasoline flow and allowing the carburetor to run dry.

OHV 50cc Engine (overhead valve) - The EF1000iS Provides improved efficiency, increased reliability, low oil consumption and noise-reducing operation.

Large Fuel Fill Access - Wide mouth fuel fill reduces spilling and overflow during refueling.

Download the latest Yamaha Generator Brochure here :- YAMAHA GENERATOR BROCHURE


3 Reviews Hide Reviews Show Reviews

  • 5
    Super fast delivery

    Posted by Colin G on 10th Aug 2021

    I was very impressed that the generator I had ordered on-line arrived less than 24hrs after I had ordered it. And that's to regional Victoria. Good job! ... oh, and the generator works well.

  • 5
    All good , very happy

    Posted by Klaus B on 3rd Oct 2019

    All good , very happy ! Thank you .

  • 5

    Posted by JANICE S on 13th Aug 2019



  • Power Rating: 1000 W
  • Generator Type: Inverter
  • Rated Voltage: 230 V
  • Frequency: 50 Hz
  • Rated Output: 900 W
  • Max. Output: 1000 W
  • DC Output: 12 V / 8 Amp
  • Dimensions: 450(L) x 240(W) x 380(H) mm
  • Weight: 12.7 kg
  • Fuel Tank Capacity: 2.5 L
  • Operating Hours (Eco On): 12 hr (1/4 load)
  • Noise Level @ 7m: 47 dBA (1/4 load) / 57 dBA (full load
  • Engine Type: 0HV Air Cooled – MZ50
  • Displacement: 50 cc
  • Max. Output: 1.6 kW (2.2 hp) / 4000 rpm
  • Starting System: Recoil

What type of fuel does it need to run.?
The Yamaha EF1000iS runs on regular unleaded fuel, this model has a 2.5 Litre fuel tank and can run up to 12 hours on a quarter load.

Where abouts are the Yamaha Service Agents located.?
Yamaha have hundreds of service agents across Australia, the following website link has their dealer / service locater :-, so you can find the nearest service agent to you.

Is Freight Insurance included in your delivery.?
Yes all of our products are insured during delivery, all products sent are fully trackable and insured.

Is there a way with this model to shut off the petrol supply so i can run the carby dry.?
Yes the Yamaha range of generators have a fuel shut off switch which is seperate from the main on / off switch. This means that you can turn off the fuel supply, enabling you to run the carburetor completely dry. This is very helpful when you intend to store the generator away for a while before using again.

Looking at buying a Yamaha EF1000iS from you. Do you ship to Tasmania? Are your products insured during shipment?
Yes, we certainly do ship to Tasmania and yes our shipping price includes freight insurance.

Is the warranty on this product a factory warranty from Yamaha?
Yes, you get the full manufacturer’s warranty from Yamaha Australia which would be covered by any local Yamaha service center.

Can I charge my battery pack from the generator?
Yes, The Yamaha EF1000iS comes with DC outlets and 12V charging cables and are popular models to charge battery packs. However, it is strongly recommended that you use a battery charger to charge your battery pack - the DC charge from the generator is not regulated, and so it is much safer and effective to connect a battery charger to your generator, and then the charger to your battery pack to charge up.

Looking for a reliable generator with inverter...its for camping, needs to be quiet. Would be good if you can recommend?
The Yamaha inverter range are reliable, good quality generators, they have a 4year warranty and with nationwide service agent support. Yamaha have some of the lightest and quietest inverter generators on the market and extremely popular for camping/camper trailers/caravans. The size of the generator would depend on the type/qty of appliances you intend to run off it. You'll need to know how much power your appliances draw to make sure you get the right size.