Boyesen Quickstart Accelerator Pump Cover - Keihin Fcr Carburetor Apc-3Qs

• High-volume vertical check valve located in the QS3 for precise, consistent fuel metering
• Tunable leak jet maximizes volume of fuel and duration of fuel spray for all conditions
• Integrated Hot Start Assist eliminates problem 4-stroke hot start procedure
• The most effective way to add performance to a Keihin FCR carburetor
• Patented design stops bogging and improves throttle response
• Investment cast and finished to precise tolerances
• Improved low-end performance
• Simple bolt-on installation
• Fits ALL Keihin FCR carbs
• 25% more fuel capacity

Honda -- CRF150R -- (2020, 2019, 2021, 2009, 2017, 2010, 2008, 2014, 2012, 2011, 2015, 2016, 2007, 2013, 2018); Honda -- CRF250R -- (2009, 2006, 2008, 2007, 2004, 2005); Honda -- CRF250X -- (2004, 2010, 2009, 2005, 2008, 2013, 2014, 2015, 2006, 2012, 2011, 2016, 2007, 2017); Honda -- CRF450R -- (2004, 2006, 2002, 2005, 2003, 2007, 2008); Honda -- CRF450X -- (2008, 2009, 2014, 2006, 2010, 2007, 2011, 2005, 2013, 2012); Kawasaki -- KX 250 F -- (2006, 2005, 2009, 2004, 2010, 2007, 2008); Kawasaki -- KLX 450 R -- (2008, 2009); Kawasaki -- KX 450 F -- (2008, 2006, 2007); Yamaha -- WR 250 F -- (2002, 2005, 2011, 2010, 2012, 2004, 2007, 2009, 2001, 2003, 2006, 2008, 2013); Yamaha -- WR 426 F -- (2001, 2002); Yamaha -- WR 450 F -- (2006, 2005, 2003, 2010, 2004, 2008, 2011, 2009, 2007); Yamaha -- YZ 426 F -- (2002, 2001); Yamaha -- WR 400 F -- (2000, 1999, 1998); Suzuki -- RM-Z 450 -- (2007, 2005, 2006); Suzuki -- RM-Z 250 -- (2004, 2005, 2006, 2009, 2008, 2007)