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Main Jet Extension

Main Jet Extension

PART# 122-5000

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$11.34   Suggested Retail
$10.21   Your Price
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An improved jet extension design that actually screws into the metering block. The main metering jet then threads into the end of the extension. The installation effectively moves the fuel entry point for the main jet out into the fuel bowl. In this location it cannot be uncovered by fuel, causing a lean condition, during periods of hard acceleration or braking. 2/Pkg.


  • Improved Design
  • 2 Per Package


Emission Code5
Product TypeMain Jet Extension
WarrantyLimited 90 Day
Part Number122-5000



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Requires the use of special “notched” float to achieve proper clearance and to operate properly. Notched float number 116-11 Or Kit with float and extensions 116-10.

Warranty Information

Limited 90 Day: See Details
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