Mar 15

Portable Generator Reviews: Powermate Generator Honda GX390

There is nothing worse than a power cut while you are enjoying a great meal, a warm bath or your favorite TV show. Things are even more serious when your business gets affected. I speak from experience as a restaurant owner. I have a number of restaurants on different Caribbean islands where power outages are common. I strive to provide top quality specialties and services to my clients so I cannot afford to go without power even for a couple of minutes. That is why I have equipped all my restaurants with portable power generators. I have experience in selecting these machines so I decided to review one of the most popular models – the Powermate PM0497000.04 8,750 Watt 389cc 13HP Honda GX390 Gas Powered Portable Generator.

In this review of the Powermate generator Honda GX390, I will describe the features of the portable generator in detail, evaluate its capacity and efficiency and outline its pros and drawbacks. Hopefully this will help you make a well-informed decision regarding this piece of equipment. I know how important it is to have a reliable generator during power outages at home and on the work place. My preferences are for more powerful machines since I have substantial electricity needs, but I will advise you to consider this product from your own perspective.

Powermate Generator Honda GX390

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Product Description

Honda GX390 is fairly compact and not particularly heavy compared to its counterparts. It is capable of producing 8,750 watts of power, but its standard running wattage is 7,000. The device runs on natural gas. It has an 8-gallon tank. The power generator comes with a frame with wheels which the device is mounted on. That way, it can be taken to any part of the property.

Features of the Powermate Generator Honda GX390

The generator measures 24.2 by 21 by 31.2 inches and weighs 200 pounds. It is easy to fit into any home or workplace irrespective of how small or crowded the place is. I can assure you that this device is quite compact. It would even fit into a crowded kitchen like the ones I have in my restaurant without you having to move any objects around it.

This Powermate generator is made from strong metal. The material is durable and reliable. The make is quite good with all parts fitting and operating perfectly.

The portable generator is equipped with a powerful engine running at 13 horsepower. This is quite a lot for an average generator used at home, at workplaces and for recreational purposes. Another important feature of the model is the low-oil shutdown. It is designed to protect the device so that it can continue to work in the long term and to prevent accidents which may put the people around you and your property in danger.

Honda GX390 runs on gas and this is actually quite beneficial. Gas is extremely widely used and is readily available. It is fairly affordable as well.

The fuel tank has a volume of 8 gallons. This is a fairly large tank especially for a generator of this size. I highly appreciate this feature because it allows for power to be produced for longer. This is particularly valuable in emergency situations when you are trying to make people feel at ease and to keep important appliances such as the refrigerator running.

The control panel of the generator is positioned not very high from the ground. This is beneficial because it makes it easier to plug in all kinds of appliances. The control panel features 4 120V outlets and one 120/140V twist lock outlet. You can readily power major appliances such as fridges, stoves and computers. You can also take the required step to power the lamps on the property. When the lights are lit everyone will feel more comfortable especially during a power outage.

The circuit break protection feature of Powermate Honda GX390 generator is particularly valuable. It will protect all the appliances that you connect to the generator from damage. This kind of protection can save you a lot of hassle and money.


Powermate PM0497000.04 is capable of producing 7,000 watts of power. This is sufficient for powering a large number of appliances plus the lights in a typical home, in a restaurant or in a medium-sized office. The maximum power the portable generator can produce is 8,750. I would personally recommend that you do not “squeeze” all the power out of the machine, if possible, as you may need it to run for quite some time. Furthermore, this will provide for the more efficient long-term protection of the motor.

When the tank is full, the Powermate portable generator will run for as long as 12.3 hours at 50 per cent load. Simply put, you will be able to get sufficient electricity supply for a whole day or for the whole night. Speaking from experience, this is a superb advantage when you have tons of products in the refrigerators which, if spoilt, can cost you quite a lot in monetary terms.


This one of the widely used portable power generators is suitable for all kinds of small businesses form restaurants to travel agencies. It can be used in single-family homes as well. You can use it to get power in your trailer when on a camping trip. It is also used by contractors that take it with them when they work in different projects.


The main benefits of Powermate generator Honda GX390 are:

  • Very powerful
  • Reliable protection from all kinds of accidents
  • Compact
  • Perfectly portable
  • Easy to set up, to start and to operate
  • Durable and simple to maintain


I actually found it very difficult to pinpoint any cons of the Powermate generator, but here are two:

  • It does not have an electric starter, but it is still very easy to use and starts quite quickly
  • Requires very precise installation – you have to follow the instructions strictly and use the right tools


In my opinion, Powermate PM0497000.04 8,750 Watt 389cc 13HP Honda GX390 Portable Generator is a reliable, powerful and durable portable power generator. It is versatile and easy to operate. It will do a great job no matter where you will use it.

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