Skip to content
Top Outdoor Generators: Reliable Power for Your Adventures

YAMAKATO 389cc 420cc Generator Carburetor Kit Review

September 3, 2025

Have you ever thought about converting your gasoline generator to run on more eco-friendly and cost-effective fuels like LPG or natural gas? The YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit might just be what you need. This conversion kit allows you to run your generator on multiple fuel sources seamlessly. Let’s walk through what this product has to offer, how it works, and why it might be the right choice for you.

YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual

Click to view the YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual.

What is the YAMAKATO Conversion Kit?

The YAMAKATO 389cc 420cc Conversion Kit is a versatile accessory that enables generators to use LPG, CNG, and gasoline. It’s designed for several models, including Honda and its clones with varying engine displacements. With this kit, you can easily transform your generator into a tri-fuel or dual-fuel powerhouse, offering flexibility in fuel choice.

Features and Specifications

Every component of this conversion kit has been crafted to ensure ease of use and reliability. Whether you’re trying to switch fuels or replacing a carburetor, this kit is designed to make the process straightforward and efficient.

Tri-Fuel Versatility

The key feature of the YAMAKATO kit is its ability to support gasoline, LPG, and CNG. This tri-fuel capability allows you the flexibility to run your generator on whichever fuel is most available and cost-effective.

OEM Quality

The kit comes with OEM-standard components, ensuring compatibility and high performance across a wide range of generator models, such as Generac, Predator, Champion, and Duromax. This guarantees that you have parts that are not just comparable but are of original manufacturer standard.

Comprehensive Compatibility

The YAMAKATO kit is built to be compatible with various engine models and sizes, ranging from 301cc to 459cc engines. Whether it’s a Firman, All Power, or Powerhorse, this kit has got you covered. You’ll find that it’s suitable for a long list of generator brands, making it easier to switch fuels without searching for a specific model.

Easy Installation

Although you will need some basic mechanical ability, the kit comes with basic operation instructions, making the installation process manageable. This means you can probably do it yourself if you have some experience doing mechanical work.

YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual

Check out the YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual here.

Why Choose the YAMAKATO Conversion Kit?

Choosing this conversion kit could be a game-changer for your portable power needs. It’s efficient, cost-effective, and eco-friendly.

Cost Effectiveness

As fuel prices fluctuate, having the option to switch between gasoline, LPG, and CNG could save you a significant amount on fuel costs. LPG and CNG are generally cheaper alternatives to gasoline and can offer considerable savings over time.

Environmental Benefits

CNG and LPG are cleaner burning fuels compared to gasoline, which means when you switch to these fuels, you are helping to reduce your carbon footprint. By using these fuels, you help in lowering emissions which makes this kit an eco-friendly choice.

Dependable and Reliable

While providing multiple fuel options, the YAMAKATO kit maintains high performance and reliability. The OEM quality of the components ensures durability and dependable operation, making it a worthwhile investment for sustained power needs.

Installation Process

Basic Requirements

To successfully install the YAMAKATO conversion kit, you should have basic mechanical skills. The kit includes non-asbestos mounting gaskets and is designed for those who are comfortable working with engines.

Tools Needed

It is essential to have the appropriate tools ready before installation. Typically, you’d need wrenches, screwdrivers, and potentially a socket set. Having these tools at your disposal will make the process smoother.

Step-by-Step Instructions

  1. Safety First: Ensure that your generator is off and disconnected from any electrical sources. Make sure the area is well-ventilated.

  2. Carburetor Removal: Carefully remove the current carburetor from your generator. Consult your generator’s manual for specific instructions if necessary.

  3. Kit Installation: Attach the YAMAKATO carburetor and ensure all connections are secure. Remember to install the new gaskets provided in the kit.

  4. Fuel Line Setup: Configure the fuel lines according to the fuel you choose to use, ensuring proper pressure regulation as specified.

  5. Testing: Once installed, test the generator to ensure it’s functioning correctly with the new setup.

YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual

Key Considerations

Fuel Pressure Regulations

It’s crucial to ensure that the fuel pressure settings are correctly calibrated:

  • For natural gas: 0.29 to 0.37 psi
  • For LPG: 0.40 to 0.55 psi

The correct pressure settings are vital for optimal performance and safety.

Regular Maintenance

Regular maintenance of your generator is essential to ensure longevity and efficiency. Clean and check all components of the conversion kit periodically, especially after extended use.

Common Questions and Answers

Does this kit come with a fuel regulator?

Yes, the kit includes everything needed for the conversion, except for any specific tools you might need to secure the parts.

Can I use this kit on a fully automatic generator?

No, this is designed for manual operation and is not suitable for automatic carburetor systems.

How will this affect my generator’s warranty?

It’s important to check your manufacturer’s warranty terms. Generally, modifications might void some warranties, so ensure you’re aware of the implications before installing the kit.

Conclusion

The YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit offers a practical solution for those looking to diversify their fuel sources. With its user-friendly design, compatibility with a broad range of generators, and potential cost savings, this kit has much to offer. By switching to alternative fuels like LPG and CNG, you can enjoy not only financial benefits but also contribute to a greener planet. If you have basic mechanical skills and are looking to make your generator more versatile, this kit may be the right investment for you.

Check out the YAMAKATO 389cc 420cc Tri Dual Generator Carburetor Gas to LPG CNG Conversion Kit OEM for Fuel Generac Predator Champion Duromax Honda etc. 459cc 338cc 301cc GX270 GX340 GX390 Manual here.

Disclosure: As an Amazon Associate, I earn from qualifying purchases.