
PROX N424-21 Keihin Pilot Jet #45 Honda CRF150R
Precision Fuel Delivery for Your Honda CRF150R Optimize your Honda CRF150R's performance with the Pro X N424-21 Series Keihin Pilot Jet. These high-quality aftermarket jets are designed for Keihin carburetors, ensuring precise fuel delivery and improved engine response. Specifications: Serie...
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Precision Fuel Delivery for Your Honda CRF150R
Optimize your Honda CRF150R's performance with the Pro X N424-21 Series Keihin Pilot Jet. These high-quality aftermarket jets are designed for Keihin carburetors, ensuring precise fuel delivery and improved engine response.
Specifications:
- Series: N424-21
- Compatibility: Honda CRF150R (2007-2009). See fitment guide for other compatible machines.
- Type: Aftermarket Jet
- Carburetor Compatibility: Keihin
Key Features
This product cannot be sold to residents in the state of California.
High quality aftermarket jets for Keihin carburetors.
Specifications
Pros & Cons
👍 Pros
- Offers a high-quality aftermarket solution for Keihin carburetors, ensuring reliable performance.
- Specifically designed as a pilot jet, playing a critical role in the carburetor's low-speed fuel mixture.
- The #45 size indicates a precise fuel flow, allowing for fine-tuning of the Honda CRF150R engine.
- Provides a component essential for maintaining or adjusting the fuel system of compatible vehicles.
- Made by PROX, a brand known for producing motorcycle components.
👎 Cons
- This product cannot be sold to residents in the state of California due to unspecified regulations.
- The jet is only compatible with Keihin carburetors, limiting its use with other carburetor brands.
- The #45 size is specific, and users may require different jet sizes for optimal tuning depending on conditions or modifications.
- The description does not provide details on the material composition or manufacturing process of the jet.
- Exclusively designed for the Honda CRF150R, which narrows its application to a specific motorcycle model.