An aerator has a submersible mixing tube having a water inlet and an aerated water outlet. An aspirating tube penetrates the mixing tube between the water inlet and the aerated water outlet, the aspirating tube having an air outlet introducing air into the mixing tube and an air inlet drawing in air from atmosphere above a water surface. The mixing tube has an outboard motor lower unit engagement to engage a lower unit of an outboard motor in use such that a propeller thereof locates entirely within the mixing tube with a midsection of the outboard motor extending from the engagement. As such, the propeller of the outboard motor lower unit thrusts water past the air inlet thereby creating suction at the inlet to draw air via the mixing tube to mix with the water to expel a plume of aerated water.

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.

A testing device for testing a drive train or components within a marine propulsion system is provided and includes a first disk with a plurality of first disk depressions that faces a second disk with a plurality of second disk depressions. The first disk and the second disk are secured relative to each other so that they define a space, and a seal at outer edges of the disks is in fluid communication with the space. One of the first disk and the second disk is secured to a driven shaft. Upon rotation of the driven shaft, a load is produced due to shearing of fluid between the disks, yet no thrust is produced.

A system for supporting a motor of a boat with respect to a boat trailer is provided. The system includes a longitudinally extendable support shaft that is configured to be secured in a selected one of a plurality of extended positions, a motor support disposed at a first end of the support shaft; and a boat trailer connector disposed at a second end of the support shaft. The trailer connector includes a releasable latch to connect the trailer connector to the boat trailer. The trailer connector includes a manually engageable actuator configured to selectively latch or release the trailer connector from the boat trailer.

A system for supporting a motor of a boat with respect to a boat trailer is provided. The system includes a longitudinally extendable support shaft that is configured to be secured in a selected one of a plurality of extended positions, a motor support disposed at a first end of the support shaft; and a boat trailer connector disposed at a second end of the support shaft. The trailer connector includes a releasable latch to connect the trailer connector to the boat trailer. The trailer connector includes a manually engageable actuator configured to selectively latch or release the trailer connector from the boat trailer.

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.

An electric outboard motor includes: an electric motor disposed in an upper portion; a propeller disposed in a lower portion; a drive shaft extending in an up-down direction to transmit rotation of the electric motor to the propeller; and a case including a case upper portion that houses the electric motor and a case lower portion that houses the drive shaft. The case upper portion includes a rearward extension that extends rearward relative to the case lower portion, and a shoulder pad member which is a member separate from the case is provided on a lower surface of the rearward extension.

An outboard motor has a cowling, a gearcase, a midsection located axially between the cowling and the gearcase, a steering arm extending forwardly from the midsection, and an anti-ventilation plate between the midsection and the gearcase. A wing extends laterally from the steering arm. The wing, a lateral side of the cowling, and a lateral side of the gearcase together define a side tripod which supports the outboard motor in a side laydown position. The anti-ventilation plate has a rear edge with laterally outer rear support members, which together with the rear of the cowling form a rear tripod which supports the outboard motor in a rear laydown position.

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.