Impulse Nozzle for Rotax Max Evo RAVE Kart Engines. This nozzle smooths and meters the air flow into the solenoid, and then on to the Max Evo power valve housing.
The pulse from the fuel pump to the solenoid when the solenoid is actuated may be somewhat turbulent, this nozzle helps create laminar flow into the solenoid, and then that flow then transfers on to the housing of the Rave Assembly.