1. USED Car/Truck Carburetors Items
  2. sku: 9044774993715721
  3. KEIHIN CB91E

KEIHIN CB91E Carburetor 100381

100381 Keihin Cb91e Carburetor

( Brand: Keihin ), ( Manufacturer Part Number: CB91E ), ( Type: Carburetor ), ( Manufacturer Warranty: No )

Review KEIHIN Carburetor

The Keihin CB91E 100381 Carburetor is a high-performance, precision-engineered component designed for use in various motorcycle applications. This carburetor is part of Keihin's CB series, which is renowned for its reliability, ease of use, and exceptional fuel efficiency.

The CB91E model is a constant-velocity carburetor, which means that it maintains a consistent fuel-air mixture delivery rate to the engine regardless of engine speed. This design feature leads to improved engine response, smoother idling, and more stable fuel consumption.

The body of the carburetor is made from robust, corrosion-resistant materials, ensuring durability and longevity even in harsh environments. The carburetor features a single 38mm throttle body, which is controlled by a twist grip throttle. The throttle cable is easily adjustable, allowing fine-tuning of the engine's power delivery.

The Keihin CB91E 100381 Carburetor comes with a Mikuni TPS (Throttle Position Sensor) as standard, which allows for electronic fuel injection (EFI) conversion, enabling easier tuning and better fuel economy. The carburetor also features an adjustable idle mixture screw, allowing the user to fine-tune the engine's idle quality.

This carburetor utilizes a flat-slide type needle and seat system, which provides precise fuel metering and excellent atomization for optimal combustion. The float bowls are equipped with needle valves, which regulate the fuel level and ensure consistent fuel delivery.

The Keihin CB91E 100381 Carburetor is compatible with various motorcycle makes and models and can be used for both street and racing applications. Its high-quality construction, versatility, and ease of adjustability make it an excellent choice for motorcycle enthusiasts seeking optimal engine performance.

The Keihin CB91E carburetor is a common choice for motorcycle enthusiasts and mechanics due to its durability and performance. Here are some pros and cons of buying this carburetor:

Pros:

1. Reputation: Keihin is a well-known and trusted brand in the motorcycle industry. The CB91E carburetor is known for its reliability and excellent fuel-air mixture delivery.

2. Versatility: This carburetor is suitable for various motorcycle applications. It can be used on different makes and models, making it a popular choice among the motorcycle community.

3. Easy to adjust: The CB91E carburetor is easy to adjust, allowing users to fine-tune the fuel-air mixture according to their engine's specific needs.

4. Affordable: Compared to other high-performance carburetors, the CB91E is relatively affordable, making it an attractive option for budget-conscious motorcycle enthusiasts.

5. Durable: The carburetor's construction is robust, and it can withstand the rigors of regular use, making it a long-lasting investment.

Cons:

1. Complexity: The CB91E carburetor may be more complex to install and adjust than some other models. It may require a certain level of mechanical expertise and experience.

2. Availability of parts: Some parts for this carburetor may be difficult to find, especially for older models or less common motorcycle applications.

3. Fuel efficiency: The CB91E carburetor may not be as fuel-efficient as modern fuel injection systems. It may require more frequent fuel adjustments to maintain optimal performance.

Conclusion:

The Keihin CB91E carburetor is a reliable and durable option for motorcycle enthusiasts looking to upgrade their carbs. Its versatility, ease of adjustment, and affordability make it an attractive choice for those in the market for a high-performance carburetor. However, its complexity and potential difficulty in obtaining parts may be a drawback for some. Ultimately, the decision to purchase this carburetor depends on the individual's mechanical expertise, motorcycle application, and budget.

Recommendation:

If you are a motorcycle enthusiast with a good level of mechanical expertise and a willingness to learn, the Keihin CB91E carburetor is an excellent investment. Its reputation for performance and durability, combined with its affordability, make it a popular choice among the motorcycle community. If you are unsure about your mechanical abilities or have a less common motorcycle application, it may be worth considering other options or seeking professional advice before making a purchase.

Details:

The KEIHIN Carburetor CB91E 100381 is a high-quality carburetor designed for vehicles with 2-barrel system.

part #: cb91e prices

  • $58.95-$64.00

specifications carbcoon:

  • brand: Keihin
  • mpn: Cb91e
  • type: Carburetor
  • manufacturer warranty: No

shipping carbcoon:

  • service: USPS Ground Advantage
  • class: Standard
  • type: Fixed
  • transit: 4-11 Days
  • cost: $12.90
  • carrier: USPS

offer carbcoon:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • started: November 22, 2025

payments carbcoon:

  • wallet: Paypal
  • other
  • credit card: Discover

returns carbcoon:

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

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: Used

seller carbcoon:

  • # reviews: 1464
  • city: Casper, Wyoming
  • rating: 99.4%
type: carburetor, manufacturer warranty: no,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 9044774993715721,

Keihin CB91E Is Similar To:

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2 offers $58.95–$64.00 USD
  • Offer #1: $64.00 price + $12.90 shipping estimate = $76.90* total. The KEIHIN Carburetor is a high-quality carburetor designed for vehicles with a 2-barrel system.+$12.90 shipping
  • Offer #2: $58.95 price + $0.00 shipping estimate = $58.95* total. THE FOLLOWING ARE THE OEM NUMBERS ON THE CARBS THAT THIS KIT FITS!.FREE SHIPPING

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