High-quality main jet for Weber carburetors (article series 73401). The main jet is one of the most critical components when tuning your carburetor, as it controls the total amount of fuel delivered in the high-speed circuit. By changing the main jet, you can fine-tune the fuel mixture to match your engine's specific requirements, ensuring optimal performance and drivability.

Technical Specifications:

• Diameter: 5 mm
• Article Number / Series: 73401
• Sold: Individually

Fits the following carburetor types:

• Weber DCO
• Weber DCOE
• Weber IDA
• Weber IDF

Please select your desired size from the drop-down menu when ordering. Available in sizes ranging from 110 up to 250. Always check your current jetting and consider buying a few different sizes to allow for accurate tuning.