A fuel delivery system, comprising: a main fuel tank; an external fuel pump; and an air filtering apparatus coupled with the main fuel tank and the external fuel pump, the air filtering apparatus including: a housing that defines a housing chamber, a fuel flow controller coupled with the housing, and a passive separator disposed within the housing chamber, the passive separator being constructed and arranged to separate air and fuel of a fuel mixture passively while the fuel mixture enters the housing chamber from the main fuel tank and while air-removed fuel exits the housing chamber toward the external fuel pump in response to operation of the fuel flow controller, wherein the main fuel tank defines a fuel tank chamber; wherein the housing of the air filtering apparatus is disposed within the fuel tank chamber defined by the main fuel tank, and wherein the fuel flow controller includes a jet pump having: a first input constructed and arranged to receive fuel returned from the external fuel pump, a second input constructed and arranged to receive the fuel mixture from the main fuel tank, and a jet pump output portion constructed and arranged to deliver the fuel mixture from the main fuel tank and the fuel returned from the external fuel pump into the housing chamber defined by the housing of the air filtering apparatus, characterized in that the external fuel pump is disposed at a first height; and the jet pump is disposed at a second height that is higher than the first height to self-prime the jet pump. a main fuel tank; an external fuel pump; and an air filtering apparatus coupled with the main fuel tank and the external fuel pump, the air filtering apparatus including: a housing that defines a housing chamber, a fuel flow controller coupled with the housing, and a passive separator disposed within the housing chamber, the passive separator being constructed and arranged to separate air and fuel of a fuel mixture passively while the fuel mixture enters the housing chamber from the main fuel tank and while air-removed fuel exits the housing chamber toward the external fuel pump in response to operation of the fuel flow controller, wherein the main fuel tank defines a fuel tank chamber; wherein the housing of the air filtering apparatus is disposed within the fuel tank chamber defined by the main fuel tank, and wherein the fuel flow controller includes a jet pump having: a first input constructed and arranged to receive fuel returned from the external fuel pump, a second input constructed and arranged to receive the fuel mixture from the main fuel tank, and a jet pump output portion constructed and arranged to deliver the fuel mixture from the main fuel tank and the fuel returned from the external fuel pump into the housing chamber defined by the housing of the air filtering apparatus, characterized in that the external fuel pump is disposed at a first height; and the jet pump is disposed at a second height that is higher than the first height to self-prime the jet pump. a housing that defines a housing chamber, a fuel flow controller coupled with the housing, and a passive separator disposed within the housing chamber, the passive separator being constructed and arranged to separate air and fuel of a fuel mixture passively while the fuel mixture enters the housing chamber from the main fuel tank and while air-removed fuel exits the housing chamber toward the external fuel pump in response to operation of the fuel flow controller, wherein the main fuel tank defines a fuel tank chamber; wherein the housing of the air filtering apparatus is disposed within the fuel tank chamber defined by the main fuel tank, and wherein the fuel flow controller includes a jet pump having: a first input constructed and arranged to receive fuel returned from the external fuel pump, a second input constructed and arranged to receive the fuel mixture from the main fuel tank, and a jet pump output portion constructed and arranged to deliver the fuel mixture from the main fuel tank and the fuel returned from the external fuel pump into the housing chamber defined by the housing of the air filtering apparatus, characterized in that the external fuel pump is disposed at a first height; and the jet pump is disposed at a second height that is higher than the first height to self-prime the jet pump. a first input constructed and arranged to receive fuel returned from the external fuel pump, a second input constructed and arranged to receive the fuel mixture from the main fuel tank, and a jet pump output portion constructed and arranged to deliver the fuel mixture from the main fuel tank and the fuel returned from the external fuel pump into the housing chamber defined by the housing of the air filtering apparatus, characterized in that the external fuel pump is disposed at a first height; and the jet pump is disposed at a second height that is higher than the first height to self-prime the jet pump.