KEIHIN 26AAPJ Carburetor Carb

( Brand: Keihin ), ( Engine Type: 4-stroke ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Machine Type: Street Motorcycle ), ( Items Included: Gasket ), ( Manufacturer Part Number: 26AAPJ ), ( Material: Brass ), ( Vintage Part: Yes ), ( Performance Part: No )

Review KEIHIN Honda Carburetor Carb fits CX500 1978

Introducing the Keihin 26AAPJ Carburetor, a high-performance component designed specifically for the 1978 Honda CX500 motorcycle. This carburetor is a replacement part that ensures optimal engine performance, delivering a smooth and responsive riding experience.

The Keihin 26AAPJ is a 26mm flat-slide carburetor, which means it utilizes a flat slide throat design for improved air velocity and metering accuracy. It features an advanced venturi shape that enhances the fuel-air mixture, leading to improved combustion efficiency and increased power output.

This carburetor comes with a set of four new jets, including the main jet (180), pilot jet (38), needle jet (55), and idle jet (65). These jets are specifically calibrated for the 1978 Honda CX500 engine, ensuring proper fuel mixture and consistent idling.

The Keihin 26AAPJ also includes a new float bowl gasket and a float bowl venturi gasket, both made of high-quality materials to ensure a tight seal and prevent fuel leaks. Additionally, it comes with a new float needle, needle seat, and needle jet needle washer to ensure a proper fit and function.

The carburetor body is made of robust materials, designed to withstand the rigors of regular motorcycle use. It features a smooth, polished finish that not only looks great but also helps to reduce air turbulence for better fuel metering.

Installing the Keihin 26AAPJ is a straightforward process, with clear instructions included in the packaging. The carburetor comes with all necessary hardware, including mounting bolts, gaskets, and washers, making it a complete replacement solution for your 1978 Honda CX500 motorcycle.

In summary, the Keihin 26AAPJ Carburetor is a high-quality, performance-enhancing component for the 1978 Honda CX500 motorcycle. With its advanced design features, precise fuel metering capabilities, and easy installation process, it is an essential upgrade for any Honda CX500 enthusiast looking to optimize their riding experience.

Pros and Cons of Buying a Keihin 26AAPJ Carburetor for a 1978 Honda CX500

The Keihin 26AAPJ carburetor is a popular choice among Honda CX500 owners for its performance improvements and ease of tuning. However, like any aftermarket part, it comes with its advantages and disadvantages.

1. Enhanced Performance: The Keihin carburetor provides better fuel mixture and airflow, resulting in increased horsepower and torque, improving overall engine performance.

2. Easy to Tune: The Keihin carburetor features a flat slide design, which simplifies the tuning process. This makes it an excellent choice for riders who want to customize their bike's engine performance.

3. Improved Fuel Efficiency: The Keihin carburetor offers better fuel atomization and combustion, resulting in improved fuel efficiency and reduced emissions.

4. Durability: Keihin carburetors are known for their high-quality construction and durability, making them a reliable choice for long-term use.

1. Cost: The Keihin 26AAPJ carburetor is more expensive than the stock carburetor, which may deter some buyers.

2. Installation Complexity: Installing a Keihin carburetor on a Honda CX500 may require some mechanical knowledge and time, as it involves adjusting various components to ensure optimal performance.

3. Potential Vibration Issues: Some users have reported issues with excessive vibration after installing a Keihin carburetor on their Honda CX500. This can be caused by improper installation, incorrect jetting, or other factors.

4. Jetting Adjustments: The Keihin carburetor may require extensive jetting adjustments to achieve optimal performance, which can be a challenging process for some riders.

The Keihin 26AAPJ carburetor offers several advantages, including improved performance, ease of tuning, fuel efficiency, and durability. However, it also comes with some disadvantages, such as a higher cost, installation complexity, potential vibration issues, and the need for extensive jetting adjustments.

If you're looking to enhance the performance of your 1978 Honda CX500 and are willing to invest the time and resources required for installation and tuning, the Keihin 26AAPJ carburetor is an excellent choice. However, if you're on a tight budget or prefer a more straightforward installation process, the stock carburetor may be a better option for you. Ultimately, the decision comes down to your personal preferences, mechanical abilities, and budget.

part # 26aapj prices

• $21.00-$125.00

specifications iodacarb:

• for models: Cx500
• for makes: Honda
• for years: 1978
• brand: Keihin
• engine type: 4-stroke
• choke type: Mechanical
• type: Carburetor
• machine type: Street Motorcycle
• items included: Gasket
• manufacturer part number: 26AAPJ
• material: Brass
• vintage part: Yes
• performance part: No

seller iodacarb:

• # reviews: 1
• rating: 100.0%

general iodacarb:

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

offer iodacarb:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• best offers: True
• quantity: 1
• started: November 29, 2025

payments iodacarb:

• wallet: Apple-pay
• credit card: Mastercard
• other

shipping iodacarb:

• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• cost: $11.41
• transit: 5-9 Days

returns iodacarb:

• policy: No Returns

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