Accelerator Pump Rebuild KitsPoor performance & bogging on acceleration are signs that you may need to rebuild the accelerator pump.All of the necessary parts to rebuild the accelerator pump circuit are included. Kits for vehicles with multiple carburetors include all components for all carburetors. Fits: Honda CRF250R 2004 2008-2009 CRF250X 2004-2006 CRF450R 2002-2006 CRF450X 2005-2007