Oil pump for a motorcycle

An oil pump for an engine having a first cam shaft, a second cam shaft, and a crankcase, the oil pump operable to draw oil from a source and deliver the oil to the crankcase for lubrication, the oil pump comprising:

• a pump body at least partially defining a pump aperture, an inlet path, an outlet path, and a bypass flow path;
• a pump assembly at least partially disposed in the pump aperture and operable to draw fluid from the inlet path and discharge fluid to the outlet path, the pump assembly including a rotating element that is directly driven by the first cam shaft;
• and
• a bypass valve coupled to the pump body and movable between a first position in which the discharged fluid flows along the outlet path and a second position in which at least a portion of the discharged fluid flows along the bypass flow path to the inlet path, wherein the pump body at least partially defines a second aperture sized to receive a second pump assembly.

An oil pump for an engine having an external surface, a cam shaft, a crankcase, and an oil pump operable to draw oil from a source and deliver the oil to the crankcase for lubrication, the oil pump comprising:

• a pump body at least partially defining a pump aperture, an inlet path, an outlet path, and a bypass flow path;
• a pump assembly at least partially disposed in the pump aperture and operable to draw fluid from the inlet path and discharge fluid to the outlet path, the pump assembly including a rotating element that is directly driven by the cam shaft;
• and
• a cover having a first surface and a second surface opposite the first surface, the first surface cooperating with the pump body to at least partially close the inlet path, the outlet path, and the bypass flow path, the second surface and the pump body each defining a portion of the external surface.