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Yost Idle Air Adjusting Screw
Made in U.S.A.
13 Reviews

Yost Idle Air Adjusting Screw


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J&P Part #:  402-681
Mfr Part #:  CVMS

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Yost Idle Air Adjusting Screw
Yost Idle Air Adjusting Screw

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Yost Idle Air Adjusting Screw

Yost Idle Air Adjusting Screw

Order in the next to ship today

Product Details


Description for Yost Idle Air Adjusting Screw

• Knurled and slotted head for easy adjustment

• Includes brass screw, O-ring, washer and spring

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Yost Idle Air Adjusting Screw

Product Specs for Yost Idle Air Adjusting Screw

Manufacturer Part Number:
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Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

  • Harley-Davidson®

    • Softail Deluxe FLSTN : 2006
    • Softail Fat Boy FLSTF : 1990–2006
    • Softail Heritage Classic FLSTC : 1990–2000, 2002–2006
    • Softail Heritage FLST : 1990, 2000–2003, 2005–2006
    • Softail Heritage Springer Classic FLSTSC : 2005
    • Softail Heritage Springer FLSTS : 1997–2003
    • Softail Nostalgia FLSTN : 1993–1996
    • Softail Springer Classic FLSTSC : 2006
    • Sportster 1200 Custom XL1200C : 2004–2006
    • Sportster 1200 Low XL1200L : 2006
    • Sportster 1200 Sport XLH1200S : 1996–2003
    • Sportster 1200 Standard XLH1200 : 1988–2003
    • Sportster 883 Custom XL883C : 2004–2006
    • Sportster 883 Deluxe XLH883 : 1988–1995
    • Sportster 883 Hugger XLH883 : 1988–2003
    • Sportster 883 Low XL883L : 2005–2006
    • Sportster 883 Roadster XLH883R : 2002–2003
    • Sportster 883 Standard XL883 : 2004–2006
    • Sportster 883 Standard XLH883 : 1988–2003
    • Touring Electra Glide Classic FLHTC : 1990–2005
    • Touring Electra Glide Police EFI FLHTPI : 1997–2003
    • Touring Electra Glide Police FLHTP : 1990–1996
    • Touring Electra Glide Sport FLHS : 1990–1993
    • Touring Electra Glide Standard FLHT : 1995–2006
    • Touring Electra Glide Ultra Classic FLHTCU : 1990–1998
    • Touring Road Glide EFI FLTRI : 2004–2006
    • Touring Road Glide FLTR : 1998–2003
    • Touring Road King FLHR : 1994–2005
    • Touring Tour Glide Classic FLTC : 1990–1992
    • Touring Tour Glide Ultra Classic FLTCU : 1990–1995
Product Notes

Shipping Note

Due to state regulations we cannot ship this item to the state of California.

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Ratings & Reviews

Help Customers Understand This Product

13 Reviews
Rating Breakdown
5 stars
4 stars
3 stars
2 stars
1 star
August 26, 2022
The extended idler screw is a saving Grace, I ride a 30-year-old fat boy which is carbureted obviously, and having the option to change the air mixture between riding in the valley and the mountains is an amazing time saver I would suggest this part to anybody that rides a carbureted bike the ease of adjustment is just amazing
April 27, 2021
Awesome Part , Easy To Install
February 1, 2021
Works as it should
January 5, 2021
Makes adjustments very easy, great instructions for installation.
July 30, 2020
Product is awesome. No more burnt fingers!
September 27, 2019
Part was a perfect match and works as advertised. Good turn around time on my order as well. 1992 1200 sportster
September 5, 2019
Works as described. Delivered in a timely manner. Customer service experience was outstanding! Thanks for the great service J&P!
September 2, 2019
Fits a little loosely in my carb. I drilled a small hole in the end and used a lock wire to secure it. So far, so good. (The wire is a reusable alternative to blue locktite and can be readjusted as needed and still secured) Works as expected.
April 22, 2019
January 11, 2017
I picked this over the CV Performance due to reviews saying that one could vibrate out. This one is a bit smaller so less weight on the head. Working great so far

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Yost Idle Air Adjusting Screw