- 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 FX -- (2019, 2021, 2020, 2022); Yamaha -- WR 250 F -- (2020, 2021); Yamaha -- YZ 450 F -- (2021, 2022, 2019, 2018, 2020); Yamaha -- YZ 250 FX -- (2020, 2021, 2022, 2023); Yamaha -- YZ 250 F -- (2021, 2022, 2023, 2019, 2020); Yamaha -- WR 450 F -- (2020, 2021, 2019)