Motorcarb
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Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb
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Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb
Pre-installed components, install the carb directly out of the box, no/small modification needed.
Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb
Item #: 59300139

Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb

Item #: 59300139

AUD 301

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*All items will import from US

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Pre-installed components, install the carb directly out of the box, no/small modification needed.
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What Stands Out

Enhanced Performance
This carburetor boosts throttle response and overall performance for Honda CRF450R and CRF450X models, ensuring a more powerful ride in various conditions.
Precision Engineering
Crafted with high-quality materials, this 39MM carburetor offers durability and reliability, reducing maintenance efforts for enthusiasts and riders alike.
Easy Installation
Designed for a straightforward installation on specified models, users can quickly upgrade their bikes, enjoying improved fuel efficiency and performance without extensive mechanical knowledge.

Product Details

Shop Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb online at a best price in Australia. B09M6Z8RYM
Item Weight2 lbs (910 grams)

Who Should Buy?

Suitable For
  • Off-Road Enthusiasts

    Perfect for riders who enjoy challenging terrains and need enhanced throttle response for better performance.

  • Race Competitors

    Ideal for motocross racers looking for a competitive edge with precise fuel delivery and optimal power.

  • Performance Modifiers

    Great for individuals upgrading their bikes for improved performance and wanting to fine-tune engine performance.

Not Suitable For
  • Casual Riders

    Not suited for those who ride leisurely, as they may not need the performance boost this carburetor offers.

Product Description

Carburetor for Honda CRF450R (2002-2008) CRF450X (2005-2014) FCRMX 39MM Carb

About This Item

Upgrade the performance of your Honda CRF450R and CRF450X with the Motorcarb Carburetor. This high-quality carburetor is designed to fit the FCRMX 39mm carburetor models from 2002-2008 for the CRF450R and 2005-2014 for the CRF450X. With its pre-installed components, the Motorcarb Carburetor offers a direct installation with no or minimal modification required. You can expect your engine to start right up and run smoothly, providing optimal performance on the track or trail. The Motorcarb Carburetor features a main jet size of #160 and a pilot jet size of #48, ensuring the perfect fuel mixture for your Honda CRF450R and CRF450X.

The outlet side has a diameter of 50mm (O.D.) and 40mm (I.D.), while the inlet side has a diameter of 56mm (O.D.) and 44mm (I.D.). When you purchase the Motorcarb Carburetor, you'll receive everything you need for a complete installation. The package includes the carburetor itself, a fuel filter, four extra main jets (sizes #165, 175, 180, 185), and four extra pilot jets (sizes #45, 52, 55, 58). Don't let carburetor problems hold you back from enjoying the full potential of your Honda CRF450R and CRF450X. Upgrade to the Motorcarb Carburetor and experience improved performance, smoother operation, and enhanced throttle response. Whether you need assistance with product-related questions or have any concerns, our dedicated customer support team is always ready to help.

Upgrade your Honda CRF450R and CRF450X today with the Motorcarb Carburetor and unlock their true potential.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What specifications should I consider when purchasing a carburetor for my Honda CRF450R?

    Answer: When buying a carburetor for your Honda CRF450R, focus on specifications such as the carburetor type, diameter (39MM for FCRMX models), and compatibility with your motorcycle's engine design. It's critical to ensure that the carburetor matches your specific model's year and type (like CRF450R or CRF450X). Additionally, consider whether the carburetor offers adjustable features that cater to various riding conditions or environments where you'll be using your bike.
  • Question: How can I tell if my CRF450R needs a new carburetor?

    Answer: Signs that your CRF450R may need a new carburetor include poor engine performance such as rough idling, stalling, decreased power, or difficulty in starting. This may occur due to dirt buildup, damaged components, or improper fuel delivery. If you notice any of these performance issues, it could indicate a malfunctioning carburetor. Additionally, inspecting the air-fuel mixture and throttle response can help determine if replacement is necessary.
  • Question: Is it possible to upgrade the carburetor on my CRF450X for improved performance?

    Answer: Yes, upgrading the carburetor on your CRF450X can significantly enhance engine performance and throttle response. Opting for a larger or adjustable carburetor can optimize fuel delivery and combustion efficiency. It's advisable to pair the new carburetor with other modifications, such as improved air filters or exhaust systems, to fully capitalize on the potential performance gains. Many riders find that such upgrades lead to smoother acceleration and better overall handling on varied terrains.
  • Question: What tools do I need to install a new carburetor on my CRF450R?

    Answer: To install a new carburetor on your CRF450R, you'll typically need basic tools such as a socket wrench set, screwdrivers (Phillips and flat-head), pliers, and possibly a torque wrench for tight connections. Familiarity with motorcycle maintenance will also be beneficial for ensuring proper installation. Make sure to follow the manufacturer's instructions closely and to have a clean workspace to avoid contamination of the carburetor or the motorcycle's parts during installation.
  • Question: Can I clean my existing carburetor instead of replacing it?

    Answer: Yes, cleaning your existing carburetor can be a practical solution if it's performing poorly due to dirt or residue buildup. Using a carburetor cleaner and following proper disassembly procedures can restore functionality. Be cautious when removing jets and components to avoid damaging delicate parts. Regular maintenance, such as cleaning the carburetor after every few rides or when experiencing performance issues, can extend its lifespan and keep your bike running smoothly.
  • Question: What benefits does a 39MM carburetor provide for my Honda CRF450 models?

    Answer: A 39MM carburetor offers several performance benefits for your Honda CRF450 models, including improved fuel atomization and more efficient air-fuel mixing. This results in enhanced throttle response and power output, making your ride smoother and more enjoyable. Riders often appreciate the increased mid-range torque and acceleration, particularly in off-road conditions where quick power delivery is essential. Furthermore, the specific design of the FCRMX model is tailored for competitive racing, maximizing your bike's potential.
  • Question: What is the difference between the FCRMX and regular carburetors?

    Answer: The FCRMX carburetors are designed specifically for off-road racing and offer performance enhancements over standard models. They feature upgraded fuel delivery systems, which provide quicker throttle response and smoother acceleration. Additionally, FCRMX carburetors often include a more precise adjustment mechanism, allowing riders to fine-tune their bike's performance for different environments or racing conditions. This makes them ideal for enthusiasts looking to gain a competitive edge on trails or tracks.
  • Question: How does the carburetor affect fuel efficiency in my CRF450R?

    Answer: The carburetor plays a crucial role in determining your CRF450R's fuel efficiency by managing the air-fuel mixture delivered to the engine. A well-tuned and properly sized carburetor can optimize combustion, which directly impacts fuel consumption. If your carburetor is malfunctioning or dirty, it may lead to excessive fuel use or incomplete combustion. Regular maintenance and adjustments can help enhance fuel economy and ensure that you get the best mileage from your bike.
  • Question: Where can I buy a carburetor for the Honda CRF450R and CRF450X?

    Answer: You can conveniently purchase the carburetor for the Honda CRF450R (2002-2008) and CRF450X (2005-2014) FCRMX 39MM Carb from Ubuy in Australia. Ubuy offers a wide selection of motorcycle spare parts and accessories, ensuring you find the right fit for your needs. With a straightforward shopping experience and trustworthy service, Ubuy is an excellent choice for riders looking to enhance their motorcycle's performance.

Motorcarb Carburetors Editorial Review

The Motorcarb Carburetor for Honda CRF450R and CRF450X has mixed reviews from customers. Some customers have reported that the carburetor is easy to install and works well, while others have had issues with the carburetor leaking fuel or not fitting properly. One customer reported that they were able to install the carburetor in under an hour and noticed a significant improvement in their bike's performance. Another customer reported that they had to modify the carburetor to make it fit properly on their bike. Overall, the Motorcarb Carburetor has received a rating of 3.5 out of 5 stars from customers.

Customer Reviews & Ratings

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Pros

  • Improved performance for some customers
  • Easy to install for some customers

Cons

  • Mixed reviews from customers

Platform Trust & Buyer Confidence

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4/5 294 reviews
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Chris
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“Promt delivery. Seems like a good product.”

22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”

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“so easy to order delivery was way earlier than i expected”

3 July 2026 · via Trustpilot
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Gavin
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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”

21-Jul-26 · via Trustpilot
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Jeannie
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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”

17-Jul-26 · via Trustpilot
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AUD 301

Order now and get it around Wednesday, August 26

QTY:

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Our Top Logistics Partners
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Fastest cross-border delivery

Features & Benefits

  • Pre-installed components for easy installation
  • No/small modification needed
  • Start your engine smoothly
  • Includes fuel filter and extra jets
  • Universal fit for all-terrain vehicles

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