A particle separator and air filter system are provided and may include a housing having an inlet and an outlet. The fuel shut-off system preferably reduces or eliminates the pressure differential across a nozzle through which fuel is delivered from a fuel chamber through a fuel-and-air mixing passage of the carburetor and into the engine. The radius of the bulge of the club face is increased while the radius of the roll is reduced to compensate for the gear effect produced by the increased MOIs. The structure further includes an nFET region including silicon fins formed from the crystalline silicon layer. After attaching, the component is surrounded with an insulating-material layer.