ASK THE MXPERTS: KEIHIN FCR FUEL SCREW KNOW-HOW - Motocross Action
![ASK THE MXPERTS: KEIHIN FCR FUEL SCREW KNOW-HOW - Motocross Action](https://cdn-0.motocrossactionmag.com/wp-content/uploads/2017/05/MXPERTSFUELSCREW1.jpg)
A throwback to an earlier era
The worlds leading publication about motocross and supercross.
Tuning the Pilot Fuel Screw and reaping the rewards
![](https://motocrossactionmag.com/wp-content/uploads/2016/03/ASKMXPERTS800.jpg)
ASK THE MXPERTS: KEIHIN FCR FUEL SCREW KNOW-HOW - Motocross Action Magazine
![](https://cdn-0.motocrossactionmag.com/wp-content/uploads/2014/03/yz250Ftestberm.jpg)
MXA'S 2014 YAMAHA YZ250F MOTOCROSS TEST: EVERYBODY LOVES AN UNDERDOG - Motocross Action Magazine
![](https://images-cdn.dashdigital.com/motocrossaction/may_2022/data/articles/img/133-02.jpg)
Motocross Action Magazine - May 2022 - Additional Ads
![](https://i0.wp.com/howtomotorcyclerepair.com/images/FCR-carburetor-accelerator-pump-timing-adjustment.jpg?ssl=1)
How-To: FCR carburetor accelerator pump timing adjustment
![](https://i.ebayimg.com/images/g/Wr8AAOSwFZdd8mCh/s-l1600.jpg)
R&D Flex Jet Remote Carb Fuel Screw Keihin FCR-MX Polaris Honda Kawasaki
![](https://cdn-0.motocrossactionmag.com/Uploads/Public/Images/jan2011/2011crf250/crf250-lead.jpg)
2011 HONDA CRF250 MOTOCROSS TEST: HONDA BETS THE BANK ON A MINI-VERSION OF THE CRF450; WARTS AND ALL - Motocross Action Magazine
![](https://cdn-0.motocrossactionmag.com/Uploads/Public/Images/0000000/ktm450berm.jpg)
MXA'S 2012 KTM 450SXF MOTOCROSS TEST: THE BIKE THAT BLOWS HOLES IN THE FUEL-INJECTED THEORY - Motocross Action Magazine
![](https://content.instructables.com/FUL/KU79/HZMJ4GWY/FULKU79HZMJ4GWY.jpg?auto=webp&frame=1&width=2100)
Fixing the Dreaded Lean Bog on Keihin FCR Carburetors : 4 Steps - Instructables
![](https://jdjetting.com/wp-content/uploads/products/fm030.jpg)
JDFM030 - JDJetting FCR/FCR MX T-handle Fuel Screw - JD Jetting
![](https://ziptyracing.com/cdn/shop/products/Fuel_Mixture_Screw_BLUE_-_Keihin_FCR_Carbs-1_1200x1200_crop_center.gif?v=1475853507)
Fuel Mixture Screw (BLUE) - Keihin FCR Carbs — ziptyracing
2008 RACE TEST: KTM 450SXF - Motocross Action Magazine
![](https://cdn-0.motocrossactionmag.com/wp-content/uploads/2017/05/MXPERTSFUELSCREW2.jpg)
ASK THE MXPERTS: KEIHIN FCR FUEL SCREW KNOW-HOW - Motocross Action Magazine
![](https://images-cdn.dashdigital.com/motocrossaction/july_2022/data/articles/img/blud.png)
Motocross Action Magazine - July 2022 - Additional Ads
![](https://cdn-0.motocrossactionmag.com/Uploads/Media/News/2009ktm505.jpg)
2009 KTM 505XC: Suspension Settings, Jetting Specs, Likes & Dislikes, Plus Much More - Motocross Action Magazine