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 CRF150R SMALL WHEEL 2012-2018 CRF150RB 2023 CRF150RB BIG WHEEL 2012-2022 CRF250F 2023 CRF250X 2007 2009-2017 CRF450R 2008 CRF450X 2008-2017