- Remove the air filter and pressure wash the inside of the airbox by covering the carb inlet with a watertight cap
- Top screw included
Yamaha -- YZ 450 F -- (2014, 2015, 2017, 2016); Yamaha -- YZ 250 F -- (2014, 2016, 2015, 2018, 2017); Yamaha -- WR 450 F -- (2015, 2016, 2017, 2018); Yamaha -- YZ 250 FX -- (2017, 2015, 2016, 2019, 2018); Yamaha -- WR 250 F -- (2017, 2016, 2018, 2015); Yamaha -- YZ 450 FX -- (2017, 2018)