An outboard motor includes a drive shaft extending vertically from an engine and is rotated by the engine. An upper case covers the drive shaft. A propeller shaft extends perpendicularly or substantially perpendicularly to the drive shaft. A lower case covers the propeller shaft. A front handle is disposed forward of the drive shaft and below an engine cover. A rear handle is disposed rearward of the drive shaft and below the engine cover. The rear handle is disposed in a position lower than a position of the front handle.

The instant invention describes an anti-biofouling structure for placement onto structures or surfaces that are exposed to aquatic environments. Embedded within the anti-biofouling structure are agents that can diffuse out of the structure and prevent the formation and/or accumulation of plant and animal species build-up that creates biofouling. The instant invention also describes a system for preventing biofouling of an object stored in an aquatic environment which includes the anti-biofouling structure and a protective cover element constructed and arranged to fit various structures, such as boat propellers.

The invention provides an internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis. The piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft. The piston has a first head moveable within a first chamber and a second head opposite the first head and moveable within a second chamber. The power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly. The lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber.

The invention provides an internal combustion engine comprising a piston mounted for reciprocating linear motion within a cylinder along a cylinder axis. The piston is coupled to an output shaft by a power transfer assembly arranged to convert linear motion of the piston to rotary motion of the output shaft. The piston has a first head moveable within a first chamber and a second head opposite the first head and moveable within a second chamber. The power transfer assembly has a lubrication system for lubricating moving components of the power transfer assembly. The lubrication system is sealed from the first chamber and the second chamber to prevent the passage of fluid from the lubrication system into the first chamber and the second chamber.

An outboard motor stabilizer of unitary construction has a cylindrical body and an axially oriented cylindrical orifice with an opening at the bottom end of the body. The orifice has a diameter sized to fit onto a tilt rod of an outboard motor and is of a length that is longer than the tilt rod of the outboard motor.

An outboard motor stabilizer of unitary construction has a cylindrical body and an axially oriented cylindrical orifice with an opening at the bottom end of the body. The orifice has a diameter sized to fit onto a tilt rod of an outboard motor and is of a length that is longer than the tilt rod of the outboard motor.

The invention relates to an outer drive protection arrangement attachable to a marine vessel (100; 200; 300; 400; 500; 600) while not immersed in water. The arrangement comprises a rim portion (110; 210; 310; 410; 510; 610; 810; 910) arranged in contact with at least a transom surface (101; 201; 301; 401; 501; 601; 801; 901) and surrounding at least one outer drive (103; 203; 303; 403; 503; 603; 803; 903); and a protective cover (111; 211; 311; 411; 511; 611; 811; 911) attached to the rim portion and enclosing a volume encompassing the at least one outer drive, in order to provide a protective gaseous environment inside the cover; wherein the environment contained within the cover is circulated and maintained at a predetermined atmospheric condition by means of a source of conditioned gas. The invention further relates to a marine vessel provided with such an outer drive protection arrangement

The invention relates to an outer drive protection arrangement attachable to a marine vessel (100; 200; 300; 400; 500; 600) while not immersed in water. The arrangement comprises a rim portion (110; 210; 310; 410; 510; 610; 810; 910) arranged in contact with at least a transom surface (101; 201; 301; 401; 501; 601; 801; 901) and surrounding at least one outer drive (103; 203; 303; 403; 503; 603; 803; 903); and a protective cover (111; 211; 311; 411; 511; 611; 811; 911) attached to the rim portion and enclosing a volume encompassing the at least one outer drive, in order to provide a protective gaseous environment inside the cover; wherein the environment contained within the cover is circulated and maintained at a predetermined atmospheric condition by means of a source of conditioned gas. The invention further relates to a marine vessel provided with such an outer drive protection arrangement

The instant invention describes an anti-biofouling structure for placement onto structures or surfaces that are exposed to aquatic environments. Embedded within the anti-biofouling structure are agents that can diffuse out of the structure and prevent the formation and/or accumulation of plant and animal species build-up that creates biofouling. The instant invention also describes a system for preventing biofouling of an object stored in an aquatic environment which includes the anti-biofouling structure, and a protective cover element constructed and arranged to fit various structures, such as boat propellers.

A cover structure of an upper unit in which a power source of an outboard motor is provided, the cover structure includes a main body cover including a pair of divided covers connected to each other, the pair of the divided covers being configured to be divided into each other in a left-right direction with respect to a traveling direction of a boat, and an attachable and detachable cover that is attachable to and detachable from a part of an outer surface of at least one of the pair of the divided covers.