Yamaha EF2000ISV2 Review (Is it Good?)

Are you in the market for a portable, reliable, and efficient generator? Look no further! In this blog post, we will be taking an in-depth look at the Yamaha EF2000ISV2. This one is a compact powerful inverter generator designed to meet all your power needs.

With its upgraded features, enhanced performance, and user-friendly design, the EF2000ISV2 is an excellent choice for outdoor enthusiasts, DIYers, and emergency backup power situations.

So, sit back and read on as we explore the ins and outs of the Yamaha EF2000ISV2!

Yamaha EF2000ISV2 Review 

Running Watts1600 watts
Surge Wattage2000 watts
Tank Size1.1 gallons
Displacement / HP79cc
Cooling Type Air Cooled
Run Time10.5 hours at 25% load
Fuel TypeGasoline
Noise Level51.5 – 61 dB at 25% load
Weight44.1 pounds
Warranty3 years


  • Inverter Technology: Clean and stable power output for sensitive electronics.
  • 2,000-Watt Max Output: Provides ample power for a variety of applications.
  • Smart Throttle: Adjusts engine speed based on load for improved fuel efficiency.
  • Quiet Operation: Noise reduction system ensures minimal disturbance.
  • Lightweight Design: Weighing only 44.1 lbs for easy portability.
  • Parallel Capability: Connect two units for increased power output.
  • Fuel Efficiency: Up to 10.5 hours runtime at 25% load with the 1.1-gallon fuel tank.
  • Oil Watch Warning System: Prevents engine damage from low oil levels.
  • Circuit Breaker Protection: Safeguards against overloads and short circuits.
  • DC Output: 8A 12V outlet for charging batteries.
  • Auto Warm-Up: Enhances cold start performance and stabilizes power output.
  • User-Friendly Controls: Easy-to-read control panel for simple operation.
  • CARB Compliant: Meets strict emissions standards for use in all 50 states.

Yamaha EF2000ISV2 vs Yamaha EF2000iS  

There are some extra features in the upgraded version of the Yamaha EF2000IS. So, let’s have a closer look.

FeatureYamaha EF2000ISV2Yamaha EF2000iS
Inverter TechnologySame in both modelsSame in both models
Max Output2,000 Watts2,000 Watts
Rated Output1,600 Watts1,600 Watts
Smart ThrottleAvailableAvailable
Quiet Operation51.5 dBA at 25% load51.5 dBA at 25% load
Weight44.1 lbs44.1 lbs
Parallel CapabilityAvailableAvailable
Fuel EfficiencyUp to 10.5 hours at 25% loadUp to 10.5 hours at 25% load
Oil Watch Warning SystemAvailableAvailable
Circuit Breaker ProtectionAvailableAvailable
DC Output8A 12V8A 12V
Auto Warm-UpAvailableNot available
User-Friendly ControlsImproved control panel designLess user-friendly control panel
CARB CompliantAvailableAvailable
ColorBlue with black accentsBlue with silver accents
Fuel GaugeFuel level indicator on the gas capNo fuel level indicator on the gas cap
Controller TypeMicrocontroller-basedAnalog-based

While both models share many similarities, the Yamaha EF2000ISV2 has a few improvements over the Yamaha EF2000iS, including an auto warm-up feature, an improved control panel design, a fuel level indicator on the gas cap, and a microcontroller-based controller.   

Yamaha inverter generator reviews
Yamaha EF2000ISV2

Yamaha EF2000ISV2 VS Honda EU2000I

FeatureYamaha EF2000ISV2Honda EU2000i
Inverter TechnologyAvailableAvailable
Max Output2,000 Watts2,000 Watts
Rated Output1,600 Watts1,800 Watts
Engine79cc OHV, single-cylinder, air-cooled98.5cc OHC, single-cylinder, air-cooled
Smart Throttle / Eco ModeAvailableAvailable (Eco Throttle)
Quiet Operation51.5 dBA at 25% load53 dBA at 25% load
Weight44.1 lbs45.6 lbs
Parallel CapabilityAvailableAvailable
Fuel EfficiencyUp to 10.5 hours at 25% loadUp to 8.1 hours at 25% load
Fuel Tank Capacity1.1 gallons0.95 gallons
Oil Watch Warning System / Low Oil ShutdownAvailableAvailable
Circuit Breaker ProtectionAvailableAvailable
DC Output8A 12V8A 12V
Auto Warm-UpAvailableNot available
User-Friendly ControlsImproved control panel designUser-friendly control panel
CARB CompliantAvailableAvailable

The Yamaha EF2000ISV2 and Honda EU2000i are both high-quality inverter generators that offer reliable and stable power output, making them suitable for a variety of applications. Both generators share many similarities, such as inverter technology, parallel capability, and low oil warning systems.

However, the Yamaha EF2000ISV2 has some advantages, including slightly quieter operation, longer runtime, larger fuel tank capacity, and an auto warm-up feature. On the other hand, the Honda EU2000i has a slightly bigger engine. When choosing between these two generators, consider factors like runtime, noise level, and additional features that may be more important for your specific needs.

Also Read:


Are Yamaha Generators Made in China?

Yamaha generators are primarily manufactured in Japan, where the company’s headquarters are located. But after the tsunami in 2011, like all other companies, they expanded their business in China. However, some components or parts of Yamaha generators may be sourced from other countries, including China, depending on the specific model or production requirements.

It is essential to note that Yamaha is committed to maintaining high-quality standards in their products, regardless of where the components are sourced. The company has a reputation for producing reliable and durable generators that meet the needs of various users around the world.

Are Yamaha Generators Quiet?

Yes, Yamaha generators are known for their quiet operation, which is an essential feature for many users, particularly in residential areas or outdoor recreational activities. Yamaha achieves this low noise level by incorporating advanced noise-reducing technology, such as soundproofing materials, a quiet exhaust system, and smart throttle load management.

For example, the Yamaha EF2000ISV2 inverter generator operates at a noise level of 51.5 dBA at 25% load, making it one of the quieter portable generators on the market. This noise level is comparable to a typical conversation between two people, which is significantly quieter than traditional non-inverter generators.

What oil does a Yamaha ef2000isv2 take?

The Yamaha EF2000iSV2 inverter generator requires high-quality 4-stroke engine oil. Yamaha recommends using oil that meets the following specifications:

  • API Service Category: SJ or later (SL, SM, SN, or SP)
  • Viscosity: SAE 10W-30

It’s crucial to use the appropriate oil viscosity based on the ambient temperature range. The SAE 10W-30 oil is recommended for a temperature range between -20°C (-4°F) and 40°C (104°F). Always refer to your generator’s owner’s manual for specific oil requirements and recommendations.

How to change the oil on the Yamaha ef2000isv2?

Here are the general steps for changing the oil on a Yamaha EF2000iSV2 inverter generator:

Materials Needed:

  • Appropriate oil (API SJ or later, SAE 10W-30)
  • Oil filter
  • Drain pan
  • Funnel
  • Clean rag or paper towel


  1. Turn off the generator and let it cool down.
  2. Remove the oil filler cap and the oil dipstick.
  3. Place a drain pan under the oil drain bolt, which is located at the bottom of the generator.
  4. Remove the drain bolt and let the oil drain completely.
  5. Replace the drain bolt and tighten it to the recommended torque specification.
  6. Remove the old oil filter, if applicable, and replace it with a new one. Make sure to lubricate the gasket with a small amount of oil before installing the new filter.
  7. Fill the engine with the recommended amount of new oil using a funnel. Be sure not to overfill the engine, as this can cause damage.
  8. Replace the oil filler cap and the oil dipstick, and wipe any excess oil from the generator’s exterior with a clean rag or paper towel.
  9. Start the generator and let it run for a few minutes to circulate the new oil.
  10. Turn off the generator and check the oil level using the dipstick. Add more oil if necessary to bring the level to the full mark.

Always refer to the owner’s manual for specific oil change instructions and recommended maintenance schedules.

Can I run sensitive electronic devices with the Yamaha EF2000ISV2?

Yes, the EF2000ISV2 features inverter technology, which produces clean and stable power output, making it safe for running sensitive electronic devices like laptops, smartphones, and televisions.

What is the fuel capacity and runtime of the Yamaha EF2000ISV2?

The EF2000ISV2 has a fuel tank capacity of 1.1 gallons. It can run up to 10.5 hours at 25% load on a single tank of fuel, thanks to its smart throttle feature that adjusts engine speed based on load for improved fuel efficiency.

Can I connect two Yamaha EF2000ISV2 generators for increased power output?

Yes, the Yamaha EF2000ISV2 has a parallel capability, which allows you to connect two units with a parallel cable (sold separately) for increased power output. This is ideal for situations where you need more power than a single unit can provide.

How heavy is the Yamaha EF2000ISV2, and is it easily portable?

The Yamaha EF2000ISV2 weighs 44.1 lbs, making it relatively lightweight and easily portable. The generator’s compact design and built-in handle also contribute to its portability, making it convenient to carry and transport.

What kind of maintenance does the Yamaha EF2000ISV2 require?

Regular maintenance for the EF2000ISV2 includes checking and changing the engine oil, cleaning or replacing the air filter, and inspecting the spark plug. The generator also features an oil watch warning system to prevent engine damage from low oil levels. Always refer to the owner’s manual for detailed maintenance guidelines and schedules.

Does the Yamaha EF2000ISV2 generator come with a warranty?

Yamaha provides a limited warranty for their generators. The EF2000ISV2 typically comes with a 3-year limited warranty for personal, family, or household use, covering defects in materials and workmanship. However, warranty terms may vary depending on the country or region. Be sure to check the warranty details from your local Yamaha dealer or in the owner’s manual.

Final Thoughts 

In conclusion, the Yamaha EF2000ISV2 is an outstanding inverter generator that delivers reliable and stable power output in a compact and lightweight package. It features advanced technology, such as smart throttle load management and inverter technology.

That ensures the efficient and safe operation of sensitive electronic devices. The generator is also designed with a quiet noise level, making it an excellent choice for use in residential areas or outdoor activities.


Rayan is an engineer, lives in a farmhouse. He has a passion for electronics and alternative energy. He loves to share his thoughts with other people. That is why he started the blog.

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