A method for making a marine propulsion device. The method includes providing a drive housing that extends between a first end and a second end, whereby drive housing has a cavity that extends inwardly from the second end. The method further includes positioning a conductor within the drive housing, whereby the conductor is configured to conduct power for the marine propulsion device. The method further includes inserting a motor assembly into the cavity and electrically coupling the motor assembly and the conductor while the motor assembly is positioned in the cavity and without entering the cavity via the first end of the drive housing.

A method for making a marine propulsion device. The method includes providing a drive housing that extends between a first end and a second end, whereby drive housing has a cavity that extends inwardly from the second end. The method further includes positioning a conductor within the drive housing, whereby the conductor is configured to conduct power for the marine propulsion device. The method further includes inserting a motor assembly into the cavity and electrically coupling the motor assembly and the conductor while the motor assembly is positioned in the cavity and without entering the cavity via the first end of the drive housing.

A cooling system for an outboard motor of a marine vessel is provided. The cooling system includes an oil sump housing having an inner housing wall and an outer housing wall. The inner housing wall defines a transmission mounting cavity, and the inner housing wall and the outer housing wall defines an oil containment cavity that at least partially surrounds the transmission mounting cavity. The cooling system further includes a first sprayer nozzle and a second sprayer nozzle. Both the first sprayer nozzle and the second sprayer nozzle are coupled to the oil sump housing and configured to spray cooling fluid within the transmission mounting cavity onto an inner surface of the inner housing wall.

An oil sump housing for an outboard motor of a marine vessel is provided. The oil sump housing includes an upper mounting flange including multiple upper mounting holes, a lower mounting flange including multiple lower mounting holes, and an inner housing wall and an outer housing wall extending between the upper mounting flange and the lower mounting flange. The inner housing wall defines a transmission mounting cavity, and the inner housing wall and the outer housing wall define an oil containment cavity that at least partially surrounds the transmission mounting cavity.

An outboard motor is provided with: an engine cover in which a first outside air inlet port, an exhaust port, and second outside air inlet ports are formed; and a lower housing that is disposed below the engine cover. The engine cover is provided with a front guide and a rear guide that guide outside air, introduced respectively from the first outside air inlet port and the second outside air inlet ports into the engine cover, downward in the gravity direction.

An outboard motor is provided with: an engine cover in which a first outside air inlet port, an exhaust port, and second outside air inlet ports are formed; and a lower housing that is disposed below the engine cover. The engine cover is provided with a front guide and a rear guide that guide outside air, introduced respectively from the first outside air inlet port and the second outside air inlet ports into the engine cover, downward in the gravity direction.

An outboard motor includes a drive shaft cover to cover a drive shaft extending downwardly from an engine, a lower unit turnable with respect to the drive shaft cover, and a harness. A lower housing of the lower unit houses a lower portion of the drive shaft and an electrical component. The harness is connected to the electrical component through an upper space provided in the drive shaft cover and through a lower space that communicates with the upper space from below in the lower housing.

An outboard motor includes a drive shaft cover to cover a drive shaft extending downwardly from an engine, a lower unit turnable with respect to the drive shaft cover, and a harness. A lower housing of the lower unit houses a lower portion of the drive shaft and an electrical component. The harness is connected to the electrical component through an upper space provided in the drive shaft cover and through a lower space that communicates with the upper space from below in the lower housing.

The invention relates to a drive (10) for a boat as an additional drive or alternative drive to a main drive (20), which is provided with a cavitation plate (24). The drive (10) in this case comprises an electric motor (8) and is designed in such a manner that it can easily be fastened to the main drive. The drive (10) is configured to be fastened to the cavitation plate such that after assembly it does not project rearwards beyond the cavitation plate (24) of the main drive (20).

An outboard motor with improved maintainability and attachable to a hull of a marine vessel includes an internal combustion engine and a cowl to cover the internal combustion engine. The internal combustion engine includes an oil filler to feed oil thereto and an oil filter to filter the oil. In a case that a direction perpendicular or substantially perpendicular to a bottom of the hull is a vertical direction, the cowl is separable into a top cowl to cover an upper portion of the internal combustion engine and a side cowl to cover a side portion of the internal combustion engine. At least a portion of the oil filler or at least a portion of the oil filter is located above a separating line which is a boundary between the top cowl and the side cowl.