Abstract: An engine having an operating orientation includes an engine housing having a crankcase and a single cylinder bore, and a single piston configured to reciprocate within the single cylinder bore to generate pressure pulses in the crankcase. A breather chamber is at least partially defined by the crankcase and is disposed adjacent the single cylinder bore. The breather chamber includes a lowermost wall in the operating orientation that defines a drain aperture through which a lubricant flows into the crankcase. A breather cover is coupled to the crankcase and cooperates with the crankcase to fully define the breather chamber. The breather cover includes a bottom in the operating orientation and a wall extending substantially vertically from the bottom in the operating orientation to at least partially define a cover space. The breather cover defines an air-lubricant mixture aperture configured to allow for the passage of the air-lubricant mixture into the cover space.

Abstract: A tube for directing fluid along a path that includes a bend. The tube comprising a conduit having a first aperture, a second aperture, and a bend portion adjacent the second aperture. An outer bend surface is integrally formed as part of the conduit to at least partially define the second aperture. An insert includes at least a portion of an inner bend surface and is disposed at least partially within the second aperture such that the outer bend surface and the inner bend surface cooperate to at least partially define the bend.

Abstract: The present invention provides a reduced emission, single cylinder engine incorporating an air flow arrangement for improving flow efficiency of the intake air drawn into the engine and the exhaust discharged from the engine.

Abstract: The present invention provides a reduced emission, single cylinder engine incorporating an air flow arrangement for improving flow efficiency of the intake air drawn into the engine and the exhaust discharged from the engine.

Abstract: The present invention provides a reduced emission, single cylinder engine incorporating at least one of a lubricant control arrangement and a crankcase breather arrangement.

Abstract: A tube for directing fluid along a path that includes a bend. The tube comprising a conduit having a first aperture, a second aperture, and a bend portion adjacent the second aperture. An outer bend surface is integrally formed as part of the conduit to at least partially define the second aperture. An insert includes at least a portion of an inner bend surface and is disposed at least partially within the second aperture such that the outer bend surface and the inner bend surface cooperate to at least partially define the bend.