KEIHIN 1391-UD06 Carburetor Carb

( Brand: Keihin ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Manufacturer Part Number: 1391-UD06 )

Review KEIHIN 1980 83 Kawasaki 1391 Ud06 Carburetor Carb Oem Genuine fits KZ440 1980-83

The Keihin 1391-UD06 carburetor is a classic component that was originally used on Kawasaki KZ440 motorcycles manufactured between 1980 and 1983. This carburetor is a testament to Keihin's engineering excellence and its ability to deliver precise fuel mixtures for optimal engine performance.

The 1391-UD06 is a downdraft carburetor, which means that the intake port is located below the level of the floats. This design ensures that the fuel level in the float bowls remains constant, even during varying engine speeds and acceleration. The carburetor features a pair of 32mm throttle bodies, each equipped with a slide throttle valve and an idling jet for fine-tuning the engine's idle mixture.

One of the most notable features of the 1391-UD06 is its adjustable jet system. This system allows riders to fine-tune the carburetor's fuel mixture based on various conditions such as altitude, temperature, and riding style. The jet kit includes a variety of main and pilot jets, as well as needle jet options, to cater to different riding scenarios.

Another important aspect of the 1391-UD06 is its durable construction. The carburetor body is made from lightweight yet robust aluminum alloy, while the floats and jets are crafted from high-quality brass. These materials ensure that the carburetor can withstand the rigors of regular motorcycle use, even in harsh environments.

The 1391-UD06 also comes with a number of convenience features to make maintenance and tuning easier. For instance, it has a conveniently located fuel level sight window, which allows riders to check the fuel level in the float bowls without having to remove the carburetor. Additionally, the carburetor features an easy-to-access adjustment screw for fine-tuning the idle mixture.

In summary, the Keihin 1391-UD06 carburetor is a high-performance, durable, and adjustable component that was designed to deliver optimal fuel mixtures for the Kawasaki KZ440 motorcycle. Its downdraft design, adjustable jet system, and durable construction make it a popular choice among vintage motorcycle enthusiasts and restorers. Whether you're looking to restore a classic bike or simply want to improve the performance of your KZ440, the 1391-UD06 is an excellent choice.

The Keihin 1391-UD06 carburetor is a popular choice among Kawasaki KZ440 owners due to its availability and reputation for providing good performance. However, like any aftermarket part, it comes with its own set of pros and cons.

1. Widely Available: The 1391-UD06 is a commonly used carburetor for the KZ440, making it easily available from various sources.

2. Improved Performance: Many users report improved engine performance and increased power delivery after installing this carburetor.

3. Better Fuel Economy: Some users have reported better fuel economy with this carburetor, resulting in fewer trips to the gas station.

4. Easy to Install: Installation is generally straightforward and can be done with common hand tools.

5. Affordable: Compared to other aftermarket options, the 1391-UD06 is relatively affordable.

1. Potential for Leaks: As with any carburetor, there is a risk of fuel leaks, especially during installation or if the gaskets are not properly sealed.

2. Requires Tuning: Proper tuning is necessary for optimal performance, which may require additional time and expense.

3. Sensitive to Altitude: The carburetor may require adjustments for altitude, which can be a challenge for some riders.

4. May Not Fit Perfectly: Some users have reported that the carburetor does not fit perfectly in the stock mounting location, requiring additional modifications.

The Keihin 1391-UD06 carburetor offers several benefits for Kawasaki KZ440 owners, including improved performance, better fuel economy, and affordability. However, it also comes with potential drawbacks such as the risk of fuel leaks, the need for tuning, and sensitivity to altitude. Ultimately, the decision to purchase this carburetor depends on the individual rider's priorities and budget.

If you are looking to improve the performance of your Kawasaki KZ440 and are comfortable with the potential challenges of installation and tuning, then the Keihin 1391-UD06 carburetor is a worthy investment. However, if you are looking for a hassle-free option, you may want to consider other aftermarket alternatives or sticking with the stock carburetor.

part # 1391ud06 prices

• $12.00-$14.00

specifications iodacarb:

• for models: Kz440
• for makes: Kawasaki
• for years: 1980-83
• brand: Keihin
• choke type: Mechanical
• type: Carburetor
• manufacturer part number: 1391-UD06

offer iodacarb:

• best offers: True
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 22, 2026

shipping iodacarb:

• service: Standard
• type: Fixed
• transit: 4-8 Days
• class: Standard
• cost: $0.00

general iodacarb:

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

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• policy: No Returns

seller iodacarb:

• # reviews: 4108
• rating: 98.7%

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• wallet: Apple-pay

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