TWIN AIR Powerflow Drosselklappengehäuse - Yamaha YZ250F/450F Zigarettenanzünder Suitable for all type of

Suitable for all type of scooters with fuel injection or carburettor

- Als Hauptscheinwerfer zugelassen

Preload adjustment via air valve

Hauptdüse 110

Passages (mm) : 30

TWIN AIR Powerflow Drosselklappengehäuse - Yamaha YZ250F/450F Zigarettenanzünder Suitable for all type ofThis Twin Air powerflow throttle body kit contains: One orange inlet tube One pin Two throttle valves (small and large diameter) Two screws It improves the engine speed, depending on the configuration. Configuration 1: increases power and acceleration at low and medium revs. Configuration 2: increases power at high revs. (without the orange inlet tube)