ANDREWS AR40B Flow Master Keihin Cv Carburetor Carb

( Brand: Andrews ), ( Type: Carburetor ), ( Machine Type: Street Motorcycle ), ( Manufacturer Part Number: AR40B ), ( Country Of Origin: Japan )

Review ANDREWS Flow Master Keihin Cv Carburetor Harley Davidson Carb fits EVO

Introducing the ANDREWS AR40B Flowmaster Keihin CV Carburetor, a high-performance carburetor designed specifically for Harley-Davidson Evolution engines. This carburetor is not to be confused with stock or aftermarket carburetors; it's an upgrade that delivers superior fuel management and power delivery.

The AR40B is a float-fed, constant-vacuum (CV) carburetor, which means it maintains a consistent vacuum level across the entire RPM range for optimal engine performance. It features a Keihin CV-type carburetor body, known for its precise metering circuits and smooth idle characteristics. This carburetor is also equipped with a Flowmaster jet kit, which provides improved fuel atomization and combustion efficiency.

The AR40B comes with a set of 34mm throttle bodies, which are larger than stock, allowing for increased airflow and better breathing. The carburetor also includes an adjustable jet kit, enabling fine-tuning of the fuel mixture for various riding conditions and engine modifications. The needle jet, pilot jet, and power jet can all be adjusted for optimal performance.

One of the most noticeable improvements with the ANDREWS AR40B carburetor is its smooth and responsive throttle action. The carburetor's design allows for quick fuel delivery to the engine, resulting in a more linear power curve and reduced engine stutter. This makes the motorcycle more responsive and easier to ride, especially in stop-and-go traffic or when accelerating from low RPMs.

The AR40B carburetor is also designed for ease of installation. It comes with all necessary hardware and instructions for a straightforward installation process. Additionally, the carburetor features an adjustable idle mixture screw, making it simple to fine-tune the idle speed and quality.

In summary, the ANDREWS AR40B Flowmaster Keihin CV Carburetor is a high-performance upgrade for Harley-Davidson Evolution engines. Its constant-vacuum design, large throttle bodies, and adjustable jet kit provide improved fuel management, power delivery, and smooth throttle response. Whether you're looking to enhance the performance of your stock motorcycle or optimize the fuel delivery for a custom build, the AR40B carburetor is an excellent choice.

The Andrews AR40B Flowmaster Keihin CV Carburetor is a popular aftermarket carburetor choice for Harley-Davidson Evolution engines. Here are some pros and cons that might help you make an informed decision about purchasing this carburetor.

1. Improved Performance: The Keihin CV carburetor is known for providing better fuel-air mixture and improved performance compared to the stock Harley-Davidson carburetor.

2. Smoother Idle: The AR40B Flowmaster carburetor offers a smoother idle, which can make your Harley-Davidson run more consistently and quietly.

3. Easy Installation: The installation process for this carburetor is relatively straightforward and can be completed in a few hours with basic hand tools.

4. Adjustability: The Keihin CV carburetor comes with adjustable jets and needles, which allows users to fine-tune the fuel-air mixture for optimal performance and fuel efficiency.

5. Durability: The carburetor is built to last, with high-quality materials and a robust design that can withstand the rigors of regular riding.

1. Cost: The Andrews AR40B Flowmaster Keihin CV Carburetor is more expensive than the stock Harley-Davidson carburetor.

2. Learning Curve: The adjustability of the carburetor can be a double-edged sword. While it allows for fine-tuning, it also requires a certain level of knowledge and understanding to use effectively.

3. Maintenance: The carburetor requires regular maintenance, including jet cleaning and needle adjustments, to ensure optimal performance.

4. Fitting Issues: Some Harley-Davidson models may require modifications to the intake manifold or air cleaner to accommodate the new carburetor.

The Andrews AR40B Flowmaster Keihin CV Carburetor offers several advantages over the stock Harley-Davidson carburetor, including improved performance, smoother idle, and adjustability. However, it also comes with some drawbacks, such as cost, a learning curve, maintenance requirements, and potential fitting issues. Ultimately, whether or not this carburetor is right for you depends on your riding style, budget, and technical abilities.

If you're looking for better performance and a smoother ride from your Harley-Davidson Evolution engine, the Andrews AR40B Flowmaster Keihin CV Carburetor is a solid choice. However, it's essential to consider the costs, installation requirements, and maintenance needs before making a purchase. If you're not comfortable with the adjustability or maintenance requirements, you may want to consider other options, such as a pre-tuned carburetor or an electronic fuel injection system.

part # ar40b prices

• $99.99-$118.99

specifications iodacarb:

• for models: Evo
• for makes: Harley, Davidson
• brand: Andrews
• type: Carburetor
• machine type: Street Motorcycle
• manufacturer part number: AR40B
• country of origin: Japan

general iodacarb:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors
• condition: Used

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• other
• credit card: Mastercard
• wallet: Paypal

shipping iodacarb:

• carrier: USPS
• transit: 3-8 Days
• cost: $0.00
• service: USPS Ground Advantage
• type: Calculated
• class: Standard

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• policy: No Returns

offer iodacarb:

• options: Ship-to-home
• sold: 0
• started: February 3, 2026
• availability: In Stock
• quantity: 1

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• # reviews: 5266
• rating: 99.2%