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J&P Cycles® Adjustable Main Jet

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J&P Part: 4000265

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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

5 by

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

5 by

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

5 by

works great

5 by

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

5 by

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

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