Motorcycle valves include intake valves and exhaust valves.
The function of the intake valve is to draw air into the engine and mix and burn the fuel.
The function of the exhaust valve is to discharge the burned exhaust gas and dissipate heat.
Motorcycle Engine Intake Exhaust Valves for Kawasaki KFX Suzuki WRF
Motorcycle Engine Intake Exhaust Valves for Kawasaki KFX Suzuki WRF