SUPER B Carburetor C3902S

( Brand: Super B ), ( Type: Carburetor ), ( Manufacturer Part Number: C3902 ), ( Vintage Part: Yes )

Review SUPER B C3902scarburetor

The C3902S Carburetor, manufactured by Mikuni, is a high-performance fuel delivery system designed specifically for motorcycles and ATVs. This carburetor is an upgraded version of the C39 model, featuring several improvements that enhance power, fuel efficiency, and ease of tuning.

The C3902S is characterized by its flat-slide design, which allows for a smoother and more consistent fuel delivery. This results in improved throttle response and overall engine performance. The carburetor also comes with a large 38mm throttle bore, which enables a greater volume of air to flow into the engine, leading to increased power output.

The C3902S Carburetor is equipped with a fine-atomizing Mikuni TPS (Throttle Position Sensor) circular slide type fuel jet. This technology ensures precise fuel metering, even at various engine speeds and load conditions. Additionally, the carburetor's idle jet is adjustable, enabling riders to fine-tune the engine's idle speed and stabilize it for optimal performance.

The C3902S comes with a convenient and easy-to-use adjustment system. It features six main jet sizes, ranging from 125 to 220, which can be quickly and easily swapped to accommodate various engine conditions and fuel octane levels. The carburetor also includes a fine-tuning needle jet, allowing riders to make precise adjustments to optimize engine performance.

The C3902S Carburetor is constructed from high-quality materials, ensuring durability and reliability. Its body is made from lightweight yet robust aluminum alloy, while its diaphragm and gaskets are made from a special rubber compound for superior flexibility and longevity.

In summary, the Mikuni C3902S Carburetor is a premium fuel delivery system that delivers improved power, fuel efficiency, and ease of tuning. Its flat-slide design, large throttle bore, and advanced TPS fuel jet technology contribute to smooth and consistent fuel delivery, while its easy-to-use adjustment system allows for quick and precise fine-tuning. The carburetor's high-quality construction ensures durability and reliability, making it an excellent choice for motorcycle and ATV enthusiasts seeking optimal engine performance.

The C3902S carburetor, manufactured by Holley, is a popular choice among automotive enthusiasts for its versatility and performance. However, like any automotive component, it comes with its own set of advantages and disadvantages.

1. Fuel Efficiency: The C3902S carburetor is known for its fuel efficiency. It utilizes a vacuum secondary system that helps to maintain optimal fuel-air mixture for better combustion.

2. Adjustability: The carburetor offers a high degree of adjustability, allowing users to fine-tune the air-fuel mixture to suit their specific engine and driving conditions.

3. Wide Compatibility: The C3902S carburetor is compatible with a wide range of engines, making it a popular choice among hot rodders and custom car builders.

4. Durability: The carburetor is built with high-quality materials and is known for its durability, making it a long-lasting investment.

1. Complexity: The carburetor's high degree of adjustability can make it complex to set up and tune, especially for those without extensive automotive knowledge.

2. Cost: Compared to other types of fuel delivery systems, such as electronic fuel injection, carburetors can be more expensive in the long run due to the need for regular maintenance and adjustments.

3. Emissions: Carburetors can produce higher levels of emissions compared to electronic fuel injection systems, making them less ideal for those concerned with environmental impact.

The C3902S carburetor offers several advantages, including fuel efficiency, adjustability, wide compatibility, and durability. However, it also comes with some disadvantages, such as complexity, cost, and emissions. Ultimately, the decision to purchase a C3902S carburetor depends on the individual's specific needs, budget, and automotive knowledge. If you are looking for a high-performance, adjustable carburetor for a custom build or hot rod, the C3902S may be an excellent investment. However, if you prioritize ease of use, low emissions, and a lower cost, other options may be more suitable for you.

If you are considering purchasing a C3902S carburetor, it is recommended that you thoroughly research the carburetor and consult with automotive professionals or experienced builders to ensure that it is the right choice for your specific application. Additionally, be prepared for the ongoing maintenance and adjustments that may be required to optimize the carburetor's performance. If you are not confident in your ability to set up and tune the carburetor, consider seeking the assistance of a professional.

part # c3902 prices

• $41.97-$162.34

specifications iodacarb:

• brand: Super B
• type: Carburetor
• manufacturer part number: C3902
• vintage part: Yes

general iodacarb:

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

offer iodacarb:

• started: August 30, 2025
• availability: In Stock
• best offers: True
• sold: 0
• quantity: 1
• options: Ship-to-home

shipping iodacarb:

• class: Expedited
• transit: 6-12 Days
• type: Calculated
• carrier: USPS
• service: USPS Priority Mail
• cost: $12.63

payments iodacarb:

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

seller iodacarb:

• # reviews: 91
• rating: 97.5%

returns iodacarb:

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

Super B C3902 Is Similar To:

• Harley Davidson 1358 S&s 388 Shorty Super E Carburetor For Parts (37% similar) $41.74–$1843.07. (August 27th, 2024)
• Mikuni Sbn44 700512587555 Carburetor Yamaha Super Bn Jet Ski Superjet B1 44 Carb Fx-1 Wr3 Vxr (23.1% similar) $135.00. (August 30th, 2024)
• S&s Cycle He09992 S&s Super E Carburetor 1-7/8 Inch Refreshed (38.2% similar) $240.00. (August 31st, 2024)
• Honda 16100-mbb-670 2003 Super Hawk Vtr1000f Carb Carbs Carburetor (44.7% similar) $57.46–$229.99. (August 31st, 2024)
• S&s Cycle Dg17767 S&s Super G Shorty Carburetor (50.7% similar) $41.97–$56.69. (September 6th, 2024)
• S&s Cycle 02348 S&s Super G Shorty Carburetor (52.1% similar) $41.97–$56.69. (September 6th, 2024)
• Honda 16102-338-004 1973 Cb175 Super Sport Left Carburetor Keihin And Intake (34.6% similar) $399.99. (September 9th, 2024)
• Harley-davidson 27421-99 05 Dyna Super Glide Fxd Carb /carburetor Assembly (35.3% similar) $21.84–$39.07. (September 10th, 2024)
• Harley-davidson 160-1712 2003 Electra Glide Classic S&s Super E Shorty Carburetor Carburator Carb (30.4% similar) $99.95–$125.00. (September 10th, 2024)
• S&s Cycle C2220 S&s Super B Carburetor Rebuilt (48.6% similar) $9.99–$43.96. (September 14th, 2024)
• S&s Cycle Xe15101 S&s Super E Shorty Carburetor 1-7/8 Inch (44.2% similar) $41.97–$56.69. (September 16th, 2024)