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Yamaha 2800w Inverter Generator

price: 1999final price: 1979
Yamaha 2800w Inverter Generator 4.9/5 58 Reviews  |  Q&A  | 

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RRP: $2,347

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Quick Overview:

Yamaha EF2800i, 2800w Inverter Generator with Bonus Pack, 4 year warranty

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Quick Overview:

Yamaha EF2800i, 2800w Inverter Generator with Bonus Pack, 4 year warranty

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Product Description

BONUS PACK with the Yamaha EF2800i Inverter Generator! ($165 of Accessories):

COVER (rrp $80) | 1 LITRE BOTTLE OF OIL (rrp $20) | SECURITY CABLE (rrp $65)

Yamaha EF2800I Bonus Pack

Bonus Pack is only on offer for a limited time, while stocks last.


Built within a compact and robust frame, the Yamaha EF2800i Inverter Generator is one of the most versatile units in the Yamaha range. Its imposing maximum output of 2800 watts is accompanied with market leading features to ensure its operation is fuel efficient and extremely reliable.

Firstly, a massive 11.2 litre tank means you can get 17 hours run time at a quarter load. Complimenting this, the Yamaha smart throttle technology maximises fuel efficiency by adjusting the engine speed directly in line with the output requirements.

Secondly, the generator’s inverter system produces clean power output, so it is safe to run any sensitive electronic equipment like, smart phones, computers and TV’s. All this comes within an efficiently sized unit weighing under 30 kilograms.

Typically generators of this tough, metal-framed design do not have inverter and smart throttle technology and are only suitable for running heavier power equipment… but the Yamaha EF2800i is far more accommodating to such a range of uses, including; camping, caravanning, outdoor events/functions, domestic backup, as well as trade and agricultural tasks.

We recommend this unit for customers requiring an inverter generator to run appliances for longer periods, such as their fridge/freezers when there is a blackout for a day or more. Also very popular for those intending to use their generator for more than one application; i.e. recreational uses as well as for work purposes or domestic backup.       

Considered to be a smart choice in the premium inverter generator range given it delivers 2800 watts maximum and is priced for under $2,000. Complete with a four year warranty and additional safety features including low oil alert to prevent engine damage, this unit will provide you reliable portable power for many, many years to come.    


  • Inverter system voltage regulator producing clean power
  • Easy recoil start assisted by auto decompressor
  • Safety features: electronic circuit breaker system and low oil alert
  • Noise level suppressor and inbuilt muffler for quiet operation
  • Smart throttle technology to maximise fuel efficiency


  • Domestic Backup 
  • Trade applications
  • Farming/Agricultural uses
  • Caravanning/Motorhomes
  • Special Events/Functions
  • DIY projects
Inverter system with Pulse Width Modulation (PWM) control. Can run products with built-in microcomputers or microcomputer-controlled electric tools.
“Economy Control” electrical governor. Improves fuel economy Reduces noise.
Multi-polar alternator. Reduces weight Compact design Exceptional power output to weight ratio.
OHV 171cc Engine. (overhead valve). Improved efficiency Quieter operation Increased reliability.
Cast iron cylinder lining. Provides consistent performance during continuous use.
Oil Watch oil warning system. Prevents engine damage Avoids costly repairs Minimises down time Provides added peace of mind Enhances long-term durability.
USFS-approved spark arrestor. Reduces chance of fires caused by an errant spark Quiet operation.
Noise Suppressor. Added convenience.
Specially designed muffler. Reduces weight Reduces noise.
AC Non-fuse Thermal Breaker. Peace of mind. Added durability.


EF2800I Product Manual


Additional Information


Country of Manufacture
Brand Yamaha
Frequency 50 Hz
Voltage 230 V
Continuous Output 2500w
Maximum Output 2800w
Alternator Type Brushless alternator with Inverter voltage regulator
DC Output None
Engine 0HV Air Cooled - MZ175
Type 4-Stroke
Displacement 171 cc
Starting Method Recoil
Fuel Tank Capacity 11.2 Litres
Cont. Working Time 17 hr (1/4 load Eco On)
Noise @ 7m 60 dBA (1/4 load) / 67 dBA (full load)
Product Dimensions (mm) LxWxH 487(L) x 395(W) x 425(H) mm
Net Weight (kg) 29.0 Kg
Outlets 2 x 15A


Product Videos

Customer Video Review_Yamaha EF2800I_Mike, Beaconsfield Upper , VIC


Customer Video Review of the Yamaha EF2800I: Mark from Noosaville QLD:


Yamaha 2800w Inverter Generator Product Review_Gary from Alstonville NSW


Customer Video Review of the Yamaha EF2800I: Chris from Marion SA:


Expert review of the Yamaha EF2800I Inverter Generator: 


Top 5 Checks for Maintaining your Yamaha Inverter Generator: 


Yamaha Inverter Generator Safety Tips:


Preparing your Yamaha generator before and after storage:


Customer Reviews

Great generator Review by David letham , Smoky Bay South Australia

Product Review

We purchased this genny for our motorhome, put the engine oil in and some fuel and it started first pull, it ran the air con electric bar heater, kettle,and micro wave, works a treat, great genny.

Shopping Experience

My Generator supplied all the information needed, and i couldnt believe how quickly it arrived. Good company to buy from with absolutely no drama’s.
Recommend this product to a friend? yes
(Posted on 9/21/18)
Excellent Unit Review by Gary Inger , Isaacs ACT

Product Review

A nice unit, that is reasonable in weight and noise levels. It has enough power to run the air conditioner in either cooling or heating mode.

Shopping Experience

Prompt service and reasonably priced.
Recommend this product to a friend? yes
(Posted on 7/7/18)
2800 Review by brad battams , BROKEN HILL NSW

Product Review

Great gen runs the caravan just fine, highly recommend. The Chinese ones are crap, get the Yamaha your better off in the end.

Shopping Experience

Great online service!
Recommend this product to a friend? yes
(Posted on 6/7/18)
back up supply Review by Gerald Thompson , Clayton Bay SA

Product Review

Only used once, but it has demonstrated its ability to "top up" my solar batteries and drive my workshop tools. Its ability to vary the output according to the demand is ideal for staged charging of the batteries down to "float" charge.

Shopping Experience

Recommend this product to a friend? yes
(Posted on 4/27/18)
Wow Review by Andrew Kendall , Svensson Heights, Bundaberg QLD

Product Review

Wow, Unpacked the Generator out of the very secure shipping box. Gave it a check over as per the Instructions Manual. Filled crankcase with the Yamaha lube oil to the correct level supplied. Checked air cleaner. Filled the fuel tank with unleaded fuel. Gave it two pulls, and away it went. Let it run for a couple of minutes to make sure that it was all good. Then plugged into my Caravan, started the Air Conditioning, then Fridge, lights, all good. Heaps of Power. Shut it all down and let my Wife start it, I pull and it was away. She couldn't believe how easy it was. Also very light to lift up Into the back of my Landcruiser.

I was looking at the Honda EFI2200 before I Purchased the YAMAHA EF2800I, sure glad that I looked at the YAMAHA before I made my decision.
Guys, Check them out before you buy a Generator. Don't be fooled by the other compact options, this Generator is not much bigger or heavier than the compact style models, and has tonnes of Power, Bigger fuel tank, is an Inverter. Just check them out "FIRST" before you buy a Generator.

Shopping Experience

Thanks My Generator
Recommend this product to a friend? Yes
(Posted on 3/26/18)
Write a Product Review

Product Faqs

Ask a Question

  • Q:G'day guys! I would like to get some advice. I am after a generator for emergency power supply for a water pump, home backup power and DIY projects. Most importantly, I need a reliable generator to run my water pump of 1.7kw with electronic controller.

    Hi Marcos - An inverter generator such as this one is going to give you clean, efficient power so you can power any of your sensitive electronic appliances.

    The Yamaha 2800i produces a max of 2800w and a rated or continuous output of 2500w. This model also comes with a long-range fuel tank which is handy. The 2800i is the most popular in our Yamaha range for your type of dual purpose application.

    The only thing I would point out is that you need to be aware of the starting wattage for the appliances that have electric motors (like power tools and water pumps). The starting wattage can be a lot higher than the running wattage. Sometimes this information isn't always available on the product. You might need to search for this information in the product manual or online, or use a wattage meter to measure this. 

    You will likely find our Generator Buyer's Guide helpful; this explains in a simple step by step format how to choose the right sized generator for your appliances.

    Assuming all the appliances you intend to run (at one time) draw less than 2800w at start up and less than 2500w when running continuous, then the Yamaha 2800i would be a great option.

    If you have any further questions, please feel free to contact us on 1300 400 122. Cheers!

  • Q:Looking for a generator as home back up when power goes out. Maybe for work around property. We live in a rural location, so needs to run house watertank system and fridge, plus some lights. Will the unit suffice?

    Hi Philip, for your type of dual purpose use, the Yamaha EF2800i is a very popular generator. To ensure this unit would be able fulfil your requirements during a power outage and for work around your property, we would recommend that you find out the exact starting and running wattages of all your appliances you intend to run. This information can be found on the product data plate, within the product manual or from the manufacturer of the product. 

    It would then be a good idea to refer to our Generator Buyer's Guide which explains in a simple step by step format how to choose the right sized generator for your appliances.

    Assuming the Yamaha EF2800i can power all your appliances, then it would be a great choice; it is an inverter generator which produces clean power so you can run any electronic equipment, it can run for 17hours at quarter load before needing refuelling (making it great for home backup use) and is easy to move around as it only weighs 29 kilos.  



  • Q:Looking at yamaha 2800i, noticed its in open frame compared to closed in designs. How does this go for a caravan? Only need it to run AC in the van.

    Hi Laurie – great question. The most popular generator models for caravan air-conditioners are the Yamaha EF2400iS and the Yamaha EF2800i. The main difference between the two is that the EF2400iS is the more typical inverter style enclosed generator with sound proofing insulation, meaning its extremely quiet with a noise rating of 54dBA. The EF2800i provides a bit more power, and is in the open frame style (as you pointed out) – which makes it 3kg’s lighter, but also means that it has a higher noise level rating at 60dBA as it doesn’t have the enclosed casing.

    Choosing between the two, obviously people first look at their power requirements and opt for a generator which best suits their appliance’s power draw (noting that both the Yamaha EF2400iS and Yamaha EF2800i will run mostly all caravan air con models on the market). Then it comes down to how particular you are with noise level; the Yamaha EF2800i is not considered “loud” like a conventional trade generator, but it is just not as quiet as the EF2400iS, which is super quiet.

    The other notable feature of the EF2800i is its 11 litre long range fuel tank; meaning it can run for 17 hours at quarter load. This makes it also popular for backup power at home (running fridges etc.) or for off-grid weekender cabins etc.

    Hope that helps - Cheers, Steve.

  • Q:What is an "inverter" generator?

    Hi Alison, and thanks for your question. An inverter is a lightweight microprocessor that converts power from direct current (DC) into alternating current (AC). They are a fairly recent advancement in technology from the older style conventional generators. What it means is that the inverter generators produce very clean power which is required to run sensitive electronic equipment such as laptops, mobile phones, camera equipment etc. 

    The other benefits of inverter generators are that they are typically much smaller and lighter than standard open frame style generators and tend to operate at very low noise levels (less than 60 decibels). Lastly, they are also very efficient; their engine speed automatically adjusts in accordance with the required load, maximising fuel efficiency. 

    Overall, they are an extremely popular portable power source for camping, caravanning, DIY tasks, small business uses and home power back up. Inverter generators range from around 800 watts up to 6300 watts.   

  • Q:What size generator would handle my Caravan air con? The unit has a nominal cooling capacity of 3.0 kW and run at a frequency of 50 Hz at at all times.

    Hi - sizing the right generator for caravan air-conditioning units is a very common question. Firstly, you need to find out the starting (peak) watts of your particular unit; we suggest the best way to do this is to contact the manufacturer of your air-con unit and their technical department will be able to inform you what the exact starting wattage of your model is. For many common air-con manufacturers such as Ibis Air Command, Dometic, Coleman, Mitsubishi etc. the technical departments have tested their range of units against leading portable generator models and can advise what size generator will best do the job.   

    For the vast majority of popular caravan air-conditioning units, the advised generator size is 2.4kVA to 2.8kVA. The most popular generator model is the Yamaha EF2400iS - it is a great performer for caravan use (including running caravan air-con units) and was rated by Caravan & Motorhome on Tour as the best Caravan Generator. For people that want more power, the Yamaha EF2800i or the Yamaha EF3000iSE are good options. 

    Just remember that each caravan air-con model is different with slightly different power draw requirements, so doing your research is good practice. Other things to consider is the power draw of any other appliances you also intend to run, along with noting that external factors such as high temperatures (above 30°C) and running long extension leads will slightly de-rate any generator's power capacity. Overall we recommend you size the right generator for your air-con and appliances (by following the steps outlined above), ensuring you also have a bit of power capacity up your sleeve if required. Thanks  


  • Q:Good morning, Karen here from Semaphore Caravan Pk Adelaide SA. We are getting ready for our trip around Australia. We would like to know what size Yamaha Generator would best suit us? We have solar panel set up, duel battery among other things.

    Hi Karen, to be sure you get the right generator for your Caravan trip, its best to know in a bit more detail exactly what you intend to be running. If you just want the generator as backup option to charge your batteries and a few other small appliances then the most popular generator models are the Yamaha EF1000iS and the Yamaha EF2000iS.

    However, if you also want a generator to run appliances with a larger draw such as a Caravan air-conditioner, a microwave, a washing machine, a standard kettle etc. etc. then you may need a larger generator such as the Yamaha EF2400iS, the Yamaha EF2800i or the Yamaha EF3000iSE. In this instance you would need to know the exact starting and running wattages of these larger appliances to ensure you get the right sized generator for the particular make/model of appliances you have. The starting wattage of these appliances is the most important number to obtain. You can do this by checking the product manual or contacting the manufacturer of the appliance (we find this is the safest/most effective approach). 

    I hope that helps - if you still need help, please feel free to give us a call on 1300 400 122! Thanks.

  • Q:Whereabouts are the Yamaha service agents located? Thank you.

    Hi Martin, Yamaha has over 200 accredited service agents around the country. The following website link has the full list and you can type in your postcode to find the nearest service agent to you:

  • Q:Do you guys have some general tips for generator maintenance? Ta

    Hi there - good question, yes we do! Firstly as a safety note, always stop the engine and let the generator cool down before starting any maintenance work. The five main general tips are;

    1. Replace engine oil
    2. Check spark plug, replace if necessary
    3. Check fuel level and ensure it is fresh fuel (fuel left for a long time can go "off")
    4. Check air filter, replace if necessary
    5. Clean muffler cover and check spark arrestor 

    You can also check out this helpful video on generator maintenance tips.

    For further maintenance help, you should take your generator to a small engine specialist or an accredited generator service technician. 

  • Q: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 that works on generators. 

    You can find a Yamaha local service agent by clicking HERE

  • Q:Will this generator run the pump for my house water system?

    Hi, that is a tough question to answer without knowing more details about your pump. Water pumps come in a range of sizes and some smaller pumps can run on a small 2000 watt generator, whereas some house pumps would need around 6000 – 8000 watts or more!...electric pumps are notorious for having quite high starting loads. So, you would need to find out the peak load (in Watts) required to start your pump. If you cannot find the starting load from the product manual or data plate, you could contact the manufacturer of your pump, or engage an electrician to take a reading.

    Once you have that all important stating load amount for your pump, you can then choose the right sized generator to run your pump.

  • Q:Is there a way to shut off the petrol supply so I can run the carburetor dry?

    Yes, all the Yamaha generators have a fuel valve shutoff (petcock) allowing you to switch off the fuel whilst the generator is operating so the remaining fuel in the carburetor runs dry.

    This feature is especially popular if you intend to store your generator in a car, as the petrol fumes ill not permeate through the vehicle thanks to the shutoff valve. 

  • Q:I plan to leave the generator outside my long term camp setup, what’s your best inverter generator that can handle all weather conditions, especially heavy rain?

    Hi there, sounds like a nice set up! The short answer is that electricity and water don’t mix. Whilst we are aware that some people run their inverter gensets in all weather conditions, it is not recommended as safe or best practice for your equipment, as inverter generators do not come with weatherproof outlets as standard.

    Ideally, you would somehow shelter your generator from the rain. But just remember that fully enclosing your generator whilst its running is not an option - generators need fresh air intake for the engine to run and they emit carbon dioxide, so they should never be contained. Overall, some rain protection but also room for fresh air intake and fume emission is what you need.

  • Q:Hi there, I'm considering a Yamaha, but have noticed several other 'generic' generator brands for around a third of the price and offer similar specs. What's driving the price difference?

    Great question Craig, thank you! Some lesser known brands have their place, really only for people who will use their generator infrequently - in which case you can save some money. Then there are also many cheap brands out there that are a good chance to break down on your first starting attempt!

    With Yamaha, firstly - their specs are superior; not only are they the quietest and lightest inverter generators in the market, they are also built to handle more intensive, frequent operation. So with a Yamaha, you know it is going to handle your power demands easily and you can use your unit for multiple applications if required; recreation, home power backup, small business, events etc. It is the premium inverter generator brand in the market.

    Secondly, with a Yamaha you get a 4 year warranty (which is much longer than the cheap brands) and you get the support of over 200 accredited service agents around the country. Our experience is that the Yamaha after sales support, servicing and parts support is excellent. You dont get a national service network with the cheap brands. 

    Hope that help explains the price difference, cheers, Steve!  

  • Q:How frequently do I have to change the motor oil? Product info says to change it after the first 20hrs, and after this first change?

    Hi, after the first oil change, the recommended oil change time frame is every 6 months or 100 hours of use. Thanks.

  • Q:I am buying a Yamaha Inverter Generator from you. If I plan to not run it for a period of 4-5 months, so should I just use a fuel stabilizer?

    Yes, a good fuel stabiliser will keep your fuel fresh during periods when you are not using your generator and in your case this should be fine.

    Other good practice recommendations are:

    • Drain the excess fuel in the carburetor after use. All Yamaha generators have a fuel shut off valve (petcock) that you can switch off while the generator is running to use the residual fuel and ensure it does not sit in the carburetor
    • Start up your generator every few months for a short period to lubricate internal parts of the unit and even apply a small load to the generator ensure everything is in working order for when you need it next.
  • Q:Hi, just wondering whether the EF2400is and EF2800i are made in Japan or China? Also, I have a EF2000is bought from you and am wondering if it could be connected with either of the above? Cheers

    Hi Andrew, the Yamaha EF2400iS and EF2800i models are made in Japan. 

    In terms of parallel connection, this is possible for the EF2000iS and the EF2400iS - only these two models in the Yamaha Inverter Generator range have the parallel connection capability. Note that you need to connect two of the same models for it to with your existing Yamaha EF2000iS, you would need to connect it (via the Yamaha Parallel Twin Tech Cables) to another EF2000iS, and this would almost double the power output. You can't connect an EF2000iS with an EF2400iS. 

    Many thanks.

  • Q:I'm looking at this generator and the eu30iu handi honda, can you please tell me the main differences?

    Hi Anita, 

    We have a comprehnsive article that compares the Honda eu30iu and the Yamaha EF2800i which you will definitely find helpful. This looks at the specs of each unit in detail: please check out the article here
    However, in summary; both generators have their advantages, but with an extended running time, and a much cheaper price tag, the Yamaha EF2800i comes out on top. Again, please have a look at the comparison article for full details.
    Many thanks!
  • Q:Hi we are looking at going on the road (nomads) and would like to have a idea on what size generator to run a Caravan A/C and a 185l fridge/freezer? regards Bryan

    Hi there, great question. The item that will draw the most power will be your Caravan A/C unit - it would be a good idea for you to contact the manufacturer of your A/C unit, speak to their technical dept. and find out what size generator they recommend for your particular model. We find that the quality Caravan A/C brands such as Dometic, Air Command, Coleman, Denso etc. are very helpful.

    In our experience, most Caravan A/C units will require a starting wattage of around 2000 to 3000 watts. So, the most popular generator models to run your Caravan A/C unit are the Yamaha EF2400iS and the Yamaha EF2800I.

    Some smaller and newer/more efficient Caravan A/C models can run on the Yamaha EF2000iS. Again, once you have spoken to your A/C manufacturer, you will be best placed to make the call, however we find that most caravan owners will opt for a 2400watt or 2800watt inverter generator model for two reasons: 1) it gives them some extra power capacity for other small appliances if required, and 2) in hotter environments, any generator's capacity is slightly de-rated, so having a generator with slightly more capability than you need can be very useful as the ambient temp gets well into the 30 degrees and above temperatures.     

    As for your 185L caravan fridge-freezer, this will not draw much power. Most quality upright caravan fridges will only draw around 100 watts (give or take). Thank you.

  • Q:Is E10 an acceptable petrol grade for a Yamaha generator?

    Hi Ed, yes it is, thank you. 

  • Q:I'm considering this generator for home backup. How much is it to get an electrician to fit a transfer switch to my home so this generator can power (part) of my house during a blackout?

    Hi Anthony, great question. You've certainly identified a popular generator model for home backup power. In terms of cost for an electrician to install a transfer switch to your home, the short answer is; it depends. Not every home install is identical in terms of works required, switch configurations etc. 

    However, to give you an idea, click HERE for a video from a My Generator customer who had a local electrician install a transfer switch to enable the power supply to their house to be transferred to a portable generator when there is a mains blackout. You can see from the video that the transfer switch install cost was around $600. We would suggest this is a pretty good price, and perhaps indicative of a straightforward install job. We have heard of higher install costs than this for other jobs, usually requiring more configuration works.

    My advice would be to get a quote from your local electrician. They can also help advise what size generator best fits your particular home backup requirements. Many thanks!     

  • Q:My product manual for my inverter generator mentions an 'earthing wire / earthing stake' - do I need this?

    Hi there, good question. This is mentioned in generator manuals and is a safety feature that will earth the generator. You do have the option to fit an 'earth wire'. Connecting an earth wire and stake is an option available to customer's that purchase a generator.

    An earth wire and stake is not supplied with generators that we sell and is application specific. In practice, we do not see customer's do this, especially for inverter generators. It can be something that is implemented for more specialized generators on mining work sites for example...for common applications, it is not common practice to 'earth' the generator with a wire and stake. If you are in doubt, and you have a specialized generator requirement that may need 'earthing', please consult an electrician. Hope that helps.

  • Q:I am told by my electrician that to wire this into my home - the generator must not have a "centre tap" - Can you advise if this has or hasn't ?

    Hi, these portable generators don’t have a centre tap. 

    Many thanks.

  • Q:I wish to buy a generator for power outages as we are on a rural property that relies on power for water. I have looked at the Supa Swift 3600 inverter and the Yamaha EF2800 inverter. Why you rate the Yamaha above the Supa Swift?

    Hi Alan, we would recommend the Yamaha EF2800 above the SupaSwift 3600 model because Yamaha are premium brand, built to handle more regular use and come with a longer, 4 year warranty. The SupaSwift is designed for only light / recreational use. 

    Using the Yamaha EF2800 for small home backup requirements via a manual transfer switch to your home is a very common application for this model of generator. In fact, you can watch this short video of a customer here using the generator for this exact purpose:

    Many thanks



For details relating to the Yamaha generator delivery process CLICK HERE



For details relating to Yamaha generator warranty CLICK HERE

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