HONDA 16100-425-772 Keihin Carburetors VB42A 16101-425-325

( Engine Type: 4-stroke ), ( Type: Carburetor ), ( Oe/oem Part Number: 16101-425-325 ), ( Manufacturer Part Number: 16100-425-772 ), ( Country/region Of Manufacture: Japan )

Review HONDA Keihin Carburetors fits CB750K CB750 1979-81

Introducing the Honda Keihin VB42A Carburetor, specifically designed for the Honda CB750K motorcycles manufactured between 1979 and 1981. This carburetor, with part numbers 16100-425-772 and 16101-425-325, is an essential component of your bike's fuel delivery system.

The VB42A carburetor is a 32mm flat-slide carburetor, known for its efficient fuel mixture delivery and responsive performance. The carburetor's design includes a venturi shape that accelerates the incoming air and fuel mixture for optimal combustion. The flat-slide construction allows for smooth and precise fuel delivery, ensuring a consistent power band throughout the RPM range.

The carburetor features an automatic choke mechanism, which helps ensure easy starting, even in cold conditions. The automatic choke system utilizes a vacuum-operated mechanism, which engages when the throttle is pulled back and disengages when the throttle is released.

The VB42A carburetor includes a float bowl with a capacity of approximately 10.5 ounces. The float bowl is designed to maintain a consistent fuel level, ensuring a steady fuel supply to the engine. The float bowl also includes a sight window, allowing for easy visual inspection of the fuel level.

The carburetor's main jet is adjustable, allowing for fine-tuning of the fuel mixture to optimize engine performance. The main jet is located at the bottom of the venturi, and its size can be adjusted by removing the retaining clip and replacing it with a jet of a different size. Adjusting the main jet is an effective way to fine-tune the fuel mixture for different riding conditions or altitudes.

The VB42A carburetor also includes adjustable idle mixture screws, which allow for fine-tuning of the idle fuel mixture. The idle mixture screws are located on the side of the carburetor and can be adjusted using a screwdriver. Properly setting the idle mixture is essential for ensuring smooth engine operation and good fuel economy.

The VB42A carburetor comes with a gasket set, making installation straightforward and hassle-free. The gasket set includes all necessary gaskets and seals for installing the carburetor on the motorcycle.

In summary, the Honda Keihin VB42A Carburetor is a crucial component of the CB750K motorcycle's fuel delivery system. Its flat-slide design, automatic choke mechanism, and adjustable main jet and idle mixture screws make it a versatile and efficient carburetor for this classic motorcycle. Proper installation and tuning ensure reliable and responsive performance.

The Keihin VB42A carburetors (part numbers 16100-425-772 for CB750K 1979-81 and 16101-425-325 for CB750) are popular aftermarket options for Honda motorcycles. Here are some pros and cons to help you make an informed decision:

1. Improved Performance: These carburetors offer better fuel mixture and air/fuel ratio, leading to improved engine performance.

2. Easy Installation: They are direct replacements for the original carburetors, making installation relatively straightforward for most DIY enthusiasts.

3. Durability: Keihin carburetors are known for their high durability and reliability.

4. Adjustability: The VB42A carburetors offer easy adjustability, allowing riders to fine-tune their engine for optimal performance.

1. Cost: Compared to the stock carburetors, aftermarket options like the Keihin VB42A can be more expensive.

2. Complexity: While the installation process is relatively straightforward, the VB42A carburetors come with more adjustment options, making them potentially more complex to set up correctly.

3. Potential Compatibility Issues: Ensure that the specific VB42A model you are considering is compatible with your CB750's engine configuration and electrical system.

The Keihin VB42A carburetors (16100-425-772 and 16101-425-325) can provide significant performance improvements for Honda CB750 motorcycles. However, they come with a higher cost and potential complexity compared to the stock carburetors. If you're willing to invest in the aftermarket option and put in the time to properly set it up, the rewards can be substantial in terms of engine performance and overall riding experience.

If you are looking to enhance the performance of your Honda CB750 and are comfortable with the additional cost and complexity, the Keihin VB42A carburetors are a solid choice. However, before making a purchase, ensure that you have the necessary tools and knowledge to install and adjust the carburetors correctly. Additionally, double-check compatibility with your specific engine and electrical system.

part # 16100425772 prices

• $69.99-$420.75

specifications iodacarb:

• for models: Cb750k, Cb750
• for makes: Honda
• for years: 1979-81
• engine type: 4-stroke
• type: Carburetor
• oe/oem part number: 16101-425-325
• manufacturer part number: 16100-425-772
• country/region of manufacture: Japan

returns iodacarb:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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seller iodacarb:

• # reviews: 19212
• rating: 99.8%

offer iodacarb:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: June 15, 2025
• quantity: 1

general iodacarb:

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

shipping iodacarb:

• type: Fixed
• cost: $15.95
• carrier: USPS
• transit: 5-10 Days
• class: Standard
• service: USPS Ground Advantage

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