Motorcycle Carburetor CNC Easy Adjustable Air Fuel Mixture Screw For ATV Motocross Universal Product Details: - Material: 6061-T6 Aluminum - Color: As shown - CNC machined screw for FCR carburetors - Design secures adjustment setting - Numerically calibrated for tuning memory - Includes spring, washer - Anodized finishing Fitment: Fits all FCR & FCR-MX Carburetors, compatible with most common 4-stroke models. Reference fit models include: - CRF150R (2007-2009, 2012-2016) - CRF150R Expert (2007-2009, 2012, 2015-2016) - CRF250R (2004-2009) - CRF250X (2004-2009, 2012-2013, 2015) - CRF450R (2002-2008) - CRF450X (2005-2009, 2012-2015) - TRX450R (2006-2009, 2012-2013) - TRX450R Electric Start (2009, 2014) - KLX450R (2008-2009) - KX250F (2004-2010) - KX450F (2006-2009) - 250 SX-F (2005-2011) - 250 XC-F (2008-2009) - 250 XCF-W (2007-2010, 2012-2014) - 400 XC-W (2009-2010) - 450 EXC (2003-2011) - 450 MXC (2003-2005) - 450 SX (2003-2006) - 450 SX-F (2008-2012) - 450 XC (2007, 2008-2009) - 450 XC-W (2012) - 505 SX-F (2007-2008) - 505 XC-F (2008) - 525 EXC (2003-2007) - 525 MXC (2003-2005) - 525 SX (2003-2006) - 525 XC (2006-2007, 2008-2009) - 530 EXC (2009-2011) - RM-Z250 (2004-2009) - RM-Z450 (2005-2008) - WR250F (2001-2009, 2011-2013) - WR426F (2001-2002) - WR450F (2003-2009, 2011) - YFZ450 (2004-2009, 2013) - YZ250F (2001-2013) - YZ426F (2000-2002) This part may fit other models. Verify compatibility before purchase. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.