Improperly functioning air cut-off valves can stick open or closed, causing popping on deceleration or poor running conditions Models with multiple carburetors include components to repair all carburetors Kit includes all necessary parts to rebuild the air cut-off valve circuit - Kawasaki KFX 400 4x2 (2006, 2003, 2005, 2004); Suzuki LT-Z QuadSport 400 4x2 (2008, 2004, 2005, 2007, 2006, 2003); Suzuki DR-Z 400 SM (2024, 2023, 2019, 2018, 2022, 2021, 2020, 2017); Suzuki DR-Z 400 S (2017, 2019, 2021, 2023, 2024, 2018, 2020, 2022); Suzuki VL 800 Intruder Volusia (2004, 2001, 2002, 2003); Yamaha Raptor 350 4x2 (2004, 2007, 2011, 2006, 2009, 2005, 2008, 2012, 2013, 2010)