Precision machined screw for FCR carburetors . O-ring design secures adjustment settingNumerically calibrated for tuning memory. Comes with spring, washer and O-ring. Anodized finishing.Condition: Material: AluminumColor: GoldenFitment:Fits all for FCR & FCR-MX Carburetors, fits most common 4-stroke models. Reference fit models as following.For CRF150R 2007-2009, 2012-2016For CRF150R Expert 2007-2009, 2012, 2015-2016For CRF250R 2004-2009For CRF250X 2004-2009, 2012-2013, 2015For CRF450R 2002-2008For CRF450X 2005-2009, 2012-2015For TRX450R 2006-2009, 2012-2013For TRX450R (Electric ) 2009, 2014For KLX450R 2008-2009For KX250F 2004-2010For KX450F 2006-2009For -Z250 2004-2009For -Z450 2005-2008For WR250F 2001-2009, 2011-2013For WR426F 2001-2002For WR450F 2003-2009, 2011For YFZ450 2004-2009, 2013For YZ250F 2001-2013For YZ426F 2000-2002This part might fit other makes and models, make .Package Contents:1* adjustment screw1* spring1* padOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm.