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J&P Cycles® Adjustable Main Jet

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Everyday Low Price: $16.99

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J&P Part: 4000265

Rating: Read Reviews


J&P Cycles® Adjustable Main Jet

Fitment Note: For S&S Super 'B' carb only.

• A fully adjustable main jet for S&S Super B carbs

• The assembly fits easily into the already tapped hole for the float bowl drain plug directly below the main circuit metering jet

• Provides positive and accurate adjustment for varying conditions and best performance

Important Product Notes

Product Specs

Carb Jets: Main Jets

Diameter: 110 jet

Sold in Units: Each


Fitment Note: For S&S Super 'B' carb only.

Customer Reviews

Overall Rating:
4/5 based on 6 ratings


love it! $16.99 I've spent in a long time!...adjusts the main jet with the turn of my hand without re jetting!


Very impressed. Nice to be able to set the cruise and tune it on the interstate. Nice product; beats changing main jets!


works great


Beats jetting manually, less plug fouling, better idle and some noticable performance improvement.


This product finally solve my jetting issue for my 1981 Shovelhead.

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