A method of controlling a plurality of marine drives on a multi-hull marine vessel includes determining, based on steering information, that the multi-hull marine vessel is entering a turn and then receiving a running trim position for each marine drive. A trim position of at least a portion of the plurality of marine drives is then adjusted from each respective running trim position so as to induce roll of the multi-hull marine vessel during the turn.

A method of controlling a plurality of marine drives on a multi-hull marine vessel includes determining, based on steering information, that the multi-hull marine vessel is entering a turn and then receiving a running trim position for each marine drive. A trim position of at least a portion of the plurality of marine drives is then adjusted from each respective running trim position so as to induce roll of the multi-hull marine vessel during the turn.

A system for controlling a marine vessel comprises an input device for inputting an operator command, a sensor which senses and signals an engine function variable or a vessel dynamic variable, and a first structural element and a second structural element. The first structural element and the second structural element each control speed or direction of motion of the marine vessel, and the first structural element and the second structural element each affect the marine vessel dynamic variable. There is a controller which receives the operator command and the engine function variable or the vessel dynamic variable. The controller moves the first structural element and the second structural element based on the engine function variable or the vessel dynamic variable, after receiving the single operator command.

A marine outboard engine including an engine unit; a drive unit operatively connected to the engine unit; an engine unit housing for supporting and covering the engine unit, the engine unit housing having a top surface; and one or more bumpers connected to the engine unit housing. The bumper projects above the top surface of the engine unit housing; or rearward of an upper rear end of the engine unit housing; or both above the top surface of the engine unit housing and rearward of an upper rear end of the engine unit housing. When the marine outboard engine is located under a boat hatch is in a closed position and the marine outboard engine is pivoted in at least one portion of a tilt range, the bumper is adapted for abutting a bottom surface of the hatch.

An outboard drive assembly for a work boat is provided. In embodiments, an outboard drive assembly includes a lower outdrive assembly including: a housing extending between a first and end a second end and having a motor housed therein; a propeller mounted to the first end of the housing; first and second fins extending horizontally from opposing side portions of the motor housing; a third fin extending vertically from the housing; respective cutting blades attached to respective end portions of each of the first, second and third fins adjacent the propeller; an upper outdrive assembly including mounting brackets configure to connect the upper drive assembly to a deck of a work boat; and a drive arm assembly pivotally mounted to the lower outdrive assembly at a first end of the drive arm assembly and mounted to the upper outdrive assembly at a second end of the drive arm assembly.

An outboard-motor mounting device is provided with: a clamp bracket (20) to be attached to a stern portion (15) of a hull; a swivel bracket (60) disposed between the clamp bracket and an outboard motor body (1); a trim-tilt equipment (40) that swings the outboard motor body back and forth via the swivel bracket; and a lift equipment (30) that lifts or lowers the outboard motor body via the swivel bracket. The lift equipment having a lift cylinder (33) for lifting is liftably supported on the clamp bracket, and the trim-tilt equipment having a tilt cylinder (44) and a trim cylinder (47) is disposed behind the lift equipment so that the tilt cylinder is positioned behind the lift cylinder and the trim cylinder is positioned on the side of the tilt cylinder.

An outboard-motor mounting device is provided with: a clamp bracket (20) to be attached to a stern portion (15) of a hull; a swivel bracket (60) disposed between the clamp bracket and an outboard motor body (1); a trim-tilt equipment (40) that swings the outboard motor body back and forth via the swivel bracket; and a lift equipment (30) that lifts or lowers the outboard motor body via the swivel bracket. The lift equipment having a lift cylinder (33) for lifting is liftably supported on the clamp bracket, and the trim-tilt equipment having a tilt cylinder (44) and a trim cylinder (47) is disposed behind the lift equipment so that the tilt cylinder is positioned behind the lift cylinder and the trim cylinder is positioned on the side of the tilt cylinder.

A tiller system for steering a marine propulsion device. The tiller system includes a tiller arm rotatably coupled to the marine propulsion device. The tiller arm is rotatable from a down position to an up position through a plurality of lock positions therebetween. A toothed member is coupled to one of the tiller arm and the marine propulsion device. The toothed member defines a plurality of teeth corresponding to the plurality of lock positions for the tiller arm. A pawl is coupled to another of the tiller arm and the marine propulsion device, where the pawl engages with the plurality of teeth to prevent the tiller arm from rotating downwardly through the plurality of lock positions.

A power steering system for an outdrive engine has a steering actuator, a motor for operating the steering actuator, a motor speed sensor for determining at least indirectly a speed of the motor, a steering rate sensor for determining a steering rate, and a controller communicating with the steering rate sensor and with the motor speed sensor. The controller is programmed for determining if a fault has occurred in the power steering system based on the steering rate and the motor speed, and taking at least one steering fault action in response to the fault having occurred. A method for controlling a power steering system includes determining if a fault has occurred based on the steering rate and the speed of the motor, and taking at least one steering fault action in response to the fault having occurred.

An outboard motor includes a bracket, an outboard motor body, a harness, and a seal. The bracket is attached to a transom of a boat. The outboard motor body is supported by the bracket. The harness extends from the outboard motor body through an opening of the transom into the boat. The seal is detachably attached to the opening to hold the harness.