Kit includes all necessary parts to rebuild the accelerator pump circuit..
Kit includes necessary O-rings, diaphragm, spring and screws.
Improperly functioning accelerator pumps can cause poor performance and bogging on acceleration
Check fitment in expandable chart below.
YamahaWR 250 F (2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013)
Yamaha YZ 250 F (2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013)
