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Yamaha EF2000iSv2, 1600 Running Watts/2000 Starting Watts, Gas Powered Portable Inverter
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- 1600 watt rated AC output, 2000 watt maximum AC output, 13.3/16.7 amps @ 120V
- Super-quiet muffler with USFS-approved spark arrestor - 51.5 dBA at 1/4 load
- Smart Throttle varies engine speed based on load - improves fuel economy and reduces noise
- Inverter system with Pulse Width Modulation (PWM) control
- CARB Compliant
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From the manufacturer
Upgraded, Power-Packed, Quiet and Lightweight
Yamaha's EF2000iSv2 inverter generator quietly powers a wider range of applications for an extended time, while still portable and retro-cool. The completely new controller with advanced programming gives the EF2000iSv2 the ability to power a much wider range of applications than previous generation EF2000iS. At less than 45 pounds, it is lightweight, very compact (2.2 cu.ft.) which makes it easy to store and transport.
Clean, high quality power
The Yamaha EF2000iSv2 Inverter generator supplies clean, high quality power. The EF2000iSV2 – 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.
New controller powers more tasks
The EF2000iSv2 incorporates a completely new controller with advanced programming resulting in improved output characteristics between 1600w-2000w operation ranges. The addition of the new programming allows the EF2000iSv2 the ability to power a much wider range of applications than previous generation EF2000iS.
Long Run Time
The EF2000iSv2 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 10.5 hours at ¼ rated load on a tank of gas.
Twin Tech Parallel Generator Operation
If you need extra power the EF2000iSv2 has you covered—a convenient parallel function lets you connect two generators to deliver up to 30 amps. The EF2000iSv2 may be connected in parallel with an earlier model Yamaha EF2000iS.
Note: Requires Twin Tech Cable and 2nd generator, not included.
The EF2000iSv2 is fitted with Yamaha’s most technologically sophisticated muffler with USFS-approved spark arrestor. It’s so quiet that you can have a conversation near one and may not realize it is running. (51.5 dBA to 61 dBA – ¼ rated to rated load). Rubber vibration isolation feet smooth operation and reduce noise.
An Ounce of Prevention...
Oil Watch Warning system — Prevents engine damage caused by low oil, avoiding costly repairs and minimizing down time, adding customer confidence and peace of mind. Electrical overload breaker — Prevents generator damage in case of overload.
Smart Throttle varies engine speed based on load — Improves fuel economy and reduces noise. Runs up to 10.5 hours at ¼ rated load on a tank of gas.
Fuel Gauge & Gasoline petcock
See fuel gauge at-a-glance. Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems.
Efficient, reliable, powerful providing long life and excellent heat dissipation - OHV engine includes steel camshaft and valve train components, cast iron cylinder liner.
50 State, Clean Emissions
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.
Auto-decompression system — Reduces compression for easier starting. Auto warm-up – Increases engine speed during cold starts to handle high power demand appliances right away.
Centralized Control, AC/DC out
Easy access to controls and fuel gauge allows fuel level to be seen at-a-glance. Includes two 120V AC outlets and one DC Outlet — 8A 12V outlet for charging batteries (cables included).
|Rated / Maximum AC Output||1600 watts / 2000 watts|
|Rated / Maximum AC Current||13.3 / 16.7 amps @ 120V|
|Engine||79cc OHV, air-cooled, single cylinder, 4-stroke|
|Weight / Dimensions: Length x Width x Height||44.1 pounds / 19.3 x 11.0 x 17.9 inches|
|Fuel Tank Capacity||1.1 gallons|
|Continuous Operation at 1/4 Rated Load||10.5 hours|
|Noise Level||51.5 - 61 dBA|
|Limited Warranty||3 years|
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|Price||See price in cart||$457.92||$3,629.10||$2,099.00||$2,222.10||$2,371.33|
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||MaxTool||Amazon.com||MidState Performance Parts||Hardware Sales Inc.||Acme Tools||PPL Motor Homes|
|Item Dimensions||19.3 x 11 x 17.9 in||18 x 11 x 18 in||33.3 x 29.5 x 28.5 in||22.3 x 13.25 x 19.8 in||1 x 1 x 1 in||—|
|Wattage||1,600 watts||1,600 watts||5,500 watts||2,800 watts||2,800 watts||2,800 watts|
Powerful, portable, and efficient, the Yamaha EF2000iS Gas-Powered Portable Inverter delivers maximum electrical output without sacrificing portability. Thanks to its innovative inverter system, the generator is able to generate up to 2,000 watts of clean AC power. It can run up to 10.5 hours continuously without refueling and uses premium technologies to maximize fuel efficiency.
Top customer reviews
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- Brand name: yes like Honda, it's a brand name, so is the third party 500$ gens, but this brandname is held to a high standard with Yamaha motor sports engines. Which relates to customer service. Try getting warranty repairs on the 500 generator you bought.
- Fuel Gauge: really Honda? 1k and you can't put a fuel gauge on the thing, the Yamaha has a simple gauge to tell fuel levels, EXTREMELY useful.
- Turning the fuel line on and off, big for me, you can turn off the fuel line and let the carb run try without having to worry about clogging up injectors.. You can have fuel in it and have it ready to go on a moments notice, the Honda, you have to worry about the clogging and whatnot, to burn the fuel off means you have to either empty the tank of gas (pain in the butt) or run it all dry. No thanks.
- Comes with the car AC cables, Honda doesn't...
13.5k A/C with thermostat set at 75,
Stereo system on,
Dining room & bedroom lights on.
84 degrees/81% humidity at Start,
78 degrees/74% humidity at Shutdown.
Did this a week or so ago with 98 degree/90%+ humidity and got 5:25hr (used full tank) with a/c set at 70 degrees intentionally so a/c would never cycle off at all throughout. Wanted to load test.
Overall, small, lightweight and incredibly easy use: easy to pick-up and move around, starts instantly (even brand new, both each out of the crate started on the first gentle pull), and they really are quiet, all things considered. Substantially more quiet than my 5k portable house generator (used only for hurricane preparedness). Very impressed and pleased with first 10 hours of engine break-in usage.
I was also pleasantly surprised when I received the generators that even though I had ordered the EF2000iS version, I received the latest and greatest iSV2 (version 2) model. Thank you Amazon!!
I will update more as I get more use of these dual units. They will be powering an RV, so many hours of usage is planned.
The big contenders in this class are this unit and the Honda 2000 watt inverter generator. I selected the Yamaha after several features stood out:
1. Fuel shutoff allows the carb to be run dry, which helps prevent starting problems after extended storage.
2. Carb drain gets every drop of fuel out for even more extended storage. (such as over the winter.)
3. Gear driven valve train instead of belt driven.
4. Closable vent cap to prevent fuel spills and fuel level indicator in the cap.
Prices were competitive and main features similar, but the Yamaha just stood out as a fuller featured machine for about the same price. These small units won't fun larger A/C units on RV's, but work with my single small RV A/C unit, although it won't run the A/C and microwave at the same time. It's also been very helpful for tasks around the house. I have a large shed that is several hundred feet away from the house, and I added a simple electrical system for lights and outlets, with a 2-breaker electrical box and extension that plugs into the generator sitting outside the shed. With the generator running, the shed becomes a remote workshop.
As with most inverter type generator systems, this unit is very quiet, especially when placed in the economy mode. The big advantage to the inverter technology is that the engine can vary in speed according to load, reducing noise and fuel consumption at low power output. The Yamaha case does a good job dampening the sound output and the controls react quickly to a surge in demand. I haven't had any instances of the unit shutting down due to excessive demand.
This generator comes with all the accessories needed, including DC battery charger cable and spark plug wrench. It does not come with any oil, so a quick trip to the auto supply department for a quart of oil is needed.
The generator is light enough for my wife to move it around and the large comfortable handle gives a good grip. The controls are all grouped together with the pull starter although you do need to tip the unit back so you can see which button you're pressing. The economy mode and on/off switches are covered with a protective rubber membrane to prevent water incursion.
It has a manual choke. It's a bit fussy to get started because you need to make sure several switches are set in the right position, the gas cap vent is open and the gas shutoff is open, and the choke is set. I wish I could say it always starts with one pull, but since I run out the gas in the cab when I'm done using it, it takes several pulls to get the carb primed and the engine started, but it does start reliable even in colder temperatures.
Overall, I'm very pleased with my purchase and I can recommend it to anyone who need lightweight, portable A/C power source.