Motorcycle Carburetor CNC Easy Adjustable Air Fuel Mixture Screw For ATV Universal Parts Condition: Brand Quantity: 1x Fuel Mixture Screw Material: 6061-T6 Aluminum Color: As shown Features: - CNC machined screw for FCR carburetors - design secures adjustment setting - Numerically calibrated for tuning memory - Includes spring, washer, and - 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) 450 XC-F (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) 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) Note: This part may fit other makes and 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.