A built-in propulsion system includes an engine, a diversion unit with a diversion base and an exhaust pipe, and a propulsion unit. The diversion base is connected to the engine, having a water inlet, a water outlet, a diversion channel in communication between the water inlet and the water outlet, a shaft hole above the water inlet and an exhaust chamber behind the shaft hole. The exhaust pipe is fixed on the outer periphery surface of the diversion base in communication with the exhaust chamber. The propulsion unit includes a transmission shaft inserted through the shaft hole and connected to the engine, and an impeller located in the diversion channel and connected to the transmission shaft. The exhaust pipe is used to exhaust the exhaust gas of the engine to the outside of the diversion base to avoid the interference of the exhaust gas and the water flow.

A control system for a watercraft includes a device system, a communication device, a controller, a first battery, and an electric power receiver. The communication device performs wireless communication with a server. The first battery provides electric power to the communication device. The electric power receiver is installed in the watercraft, connected to the first battery, and operable to receive shore power. The controller is configured or programmed to send device data to the server in a normal electric power mode when the first battery is connected to the shore power. The controller is configured or programmed to send the device data to the server in a low electric power mode when a low electric power condition, including a condition that the first battery is not connected to the shore power, is satisfied. The controller is configured or programmed to reduce data traffic of the device data to be sent to the server in the low electric power mode compared to when in the normal electric power mode.

A vessel operation system includes an outboard motor or other propulsion apparatus disposed on a hull, a trolling motor mounted externally to the hull, a joystick or other first operator, and a controller. The joystick is operated by a vessel operator in order to indicate at least one of a magnitude and a direction of a thrust that the outboard motor is to apply to the hull. In a state in which the trolling motor is generating a first thrust, the controller controls the outboard motor so as to generate a second thrust in accordance with a command indicated by the joystick. Additionally, the controller controls the trolling motor so that the first thrust changes.

A vessel operation system includes an outboard motor or other propulsion apparatus on a hull, an electrically-driven trolling motor mounted externally to the hull, and a controller configured or programmed to control the outboard motor and the trolling motor. The outboard motor generates a thrust and electric power with an engine. The trolling motor generates a thrust by being driven by electric power from a battery that is charged by the electric power generated by the outboard motor. In a state in which the trolling motor is generating the thrust, the controller is configured or programmed to control the outboard motor so as to generate an assist thrust that hastens a behavior of the hull by the thrust generated by the trolling motor.

A marine outboard motor having an internal combustion engine is provided. The internal combustion engine includes an engine block having at least one cylinder and a valve train comprising a cam, a valve assembly including a valve spring, a roller finger follower, and a pivot post. The pivot post extends from a fixed body of the engine block and defines a contact surface about which the roller finger follower pivots when deflected by the cam during use. The pivot post is moveable relative to the fixed body in a first longitudinal direction (A) against the action of the valve spring. A removable shim is disposed between the fixed body and a portion (182) of the pivot post to space the pivot post from the fixed body in the first longitudinal direction (A) and thereby reduce an amount of lash between the cam and the roller finger follower. The removable shim is dimensioned to fit at least partly around a shaft portion of the pivot post.

A device to support an outboard motor in a raised position, the device including an elongated support body having first and second ends, a coupling member provided at the first end of the support body and configured to be removably coupled to a stern bracket, and a pair of stabilizing members coupled proximate the second end of the support body, wherein the second end of the support body is configured to contact a motor bracket to maintain the outboard motor in the raised position, and wherein the pair of stabilizing members are configured to be fixable in a position to contact opposite sides of the outboard motor to stabilize the outboard and inhibit lateral movement.

A system for locking a trolling motor assembly in a stowed position on a watercraft is provided herein. The system comprises a trolling motor assembly attached to the watercraft, wherein the trolling motor assembly is movable between the stowed position and a deployed position. The system further includes a locking mechanism mounted to the watercraft and configured to interact with the trolling motor assembly when the trolling motor assembly is in the stowed position. The locking mechanism defines a locked state and an unlocked state and is configured to transition between the states. The system additionally includes a controller having a memory including program code configured to, when executed, cause a processor to determine an instance in which to transition the locking mechanism from the locked state to the unlocked state and, in response, cause the locking mechanism to transition from the locked state to the unlocked state.

A marine vessel propulsion apparatus that is configured to handheld by a user and employed to either propel a small marine craft or assist in the maneuvering of a larger marine vessel. The present invention includes a motor assembly having a waterproof housing with a power supply operably coupled thereto. The motor assembly is operably coupled to a shaft assembly wherein the shaft assembly includes a shaft and a propeller secured thereto. The shaft is releasably secured to the motor assembly and is manufactured from a non-conductive lightweight material. The shaft is configured to rotate in both a clockwise or counterclockwise direction. The shaft further can include a float member secured thereto wherein the float member is manufactured from a buoyant material. The propeller can be provided in alternate diameters and have alternate quantities of blades.

A watercraft positional information managing system in which GPS-based positional information is prevented from being falsified includes a server and a watercraft. The watercraft includes a propulsion device and a communicator to communicate with the server. The communicator includes a position detector to detect positional information of the watercraft. The propulsion device includes an engine and a controller configured or programmed to control the engine. The controller is connected to the communicator and outputs data related to the engine to the communicator. The communicator transmits the data related to the engine and the positional information of the watercraft to the server. The server receives the data related to the engine and the positional information of the watercraft and determines whether or not the positional information of the watercraft is genuine based on the data related to the engine.

A transducer mount assembly includes a housing and a motor coupled to and disposed within the housing. An elongated rod extends from the housing and is operably coupled to the motor. The motor is configured to rotate the elongated rod about a longitudinal axis of the elongated rod in a first direction and a second direction opposite the first direction. A controller is in communication with the motor and is configured to selectively direct the motor to rotate the elongated rod in the first direction and the second direction. A boat mount bracket is configured to couple the transducer mount assembly to portion of a boat. A transducer mount bracket is configured to couple a transducer to the elongated rod.