An anti-theft apparatus for an outboard motor that can be mounted on a boat, comprising a comparison unit configured to compare a vibration of the outboard motor with a vibration of a portion of the boat other than the outboard motor, and a notification unit configured to make a predetermined notification based on a comparison result by the comparison unit.

A jack plate includes a mounting assembly having first and second spacing brackets connected by a transom plate adapted for mounting to the transom of a boat, each of the spacing brackets having inwardly facing channels at rearward sides of the spacing brackets. The jack plate further includes a motor lift including a lift plate extending between a first bearing and a second bearing, the channels adapted to conformingly receive the first and second bearings. An actuator is provided to raise and lower the lift plate relative to the transom plate. At least one spring is operably coupled between the mounting assembly and the motor lift, the spring unloading the lift plate to re-duce load on the actuator. The spring is optionally a compression gas spring.

A jack plate includes a mounting assembly having first and second spacing brackets connected by a transom plate adapted for mounting to the transom of a boat, each of the spacing brackets having inwardly facing channels at rearward sides of the spacing brackets. The jack plate further includes a motor lift including a lift plate extending between a first bearing and a second bearing, the channels adapted to conformingly receive the first and second bearings. An actuator is provided to raise and lower the lift plate relative to the transom plate. At least one spring is operably coupled between the mounting assembly and the motor lift, the spring unloading the lift plate to re-duce load on the actuator. The spring is optionally a compression gas spring.

A multiple motor control system is provided for manipulating a propulsion system consisting of electric motors mounted on a water traversing vessel or watercraft. The control system incorporates a main shaft on which the electric motors are mounted and includes a steering system for turning the motors relative to the watercraft, a lifting system for raising and lowering the electric motors relative to the surface of the water and a trim mechanism for angling the direction of thrust of the electric motors so as to trim or level out the path of the watercraft as it travels through the water.

A multiple motor control system is provided for manipulating a propulsion system consisting of electric motors mounted on a water traversing vessel or watercraft. The control system incorporates a main shaft on which the electric motors are mounted and includes a steering system for turning the motors relative to the watercraft, a lifting system for raising and lowering the electric motors relative to the surface of the water and a trim mechanism for angling the direction of thrust of the electric motors so as to trim or level out the path of the watercraft as it travels through the water.

An outboard motor has a powerhead that causes rotation of a driveshaft, a steering housing located below the powerhead, wherein the driveshaft extends from the powerhead into the steering housing; and a lower gearcase located below the steering housing and supporting a propeller shaft that is coupled to the driveshaft so that rotation of the driveshaft causes rotation of the propeller shaft. The lower gearcase is steerable about a steering axis with respect to the steering housing and powerhead.

The present disclosure relates to a houseboat assembly formed from a cabin assembly secured to a hull assembly. In some version of the houseboat assembly, the hull assembly may include a runoff flange. The runoff flange may include an inner flange, an outer flange, and a riser extending between the inner flange and the outer flange. The outer flange may extend along an imaginary longitudinal outer flange axis and the riser may extend along an imaginary longitudinal riser axis whereby the riser axis intersects the outer flange axis at an angle. In some versions of the houseboat assembly, the angle is an acute angle. More specifically, the angle may be between thirty and sixty degrees. In some versions of the houseboat assembly, the cabin assembly is secured to the inner flange of the runoff flange. Cross-members and deck boards may be secured to a roof of the cabin assembly.

The present disclosure relates to a houseboat assembly formed from a cabin assembly secured to a hull assembly. In some version of the houseboat assembly, the hull assembly may include a runoff flange. The runoff flange may include an inner flange, an outer flange, and a riser extending between the inner flange and the outer flange. The outer flange may extend along an imaginary longitudinal outer flange axis and the riser may extend along an imaginary longitudinal riser axis whereby the riser axis intersects the outer flange axis at an angle. In some versions of the houseboat assembly, the angle is an acute angle. More specifically, the angle may be between thirty and sixty degrees. In some versions of the houseboat assembly, the cabin assembly is secured to the inner flange of the runoff flange. Cross-members and deck boards may be secured to a roof of the cabin assembly.

An outboard motor lifting device includes a hydraulic source, a first oil channel connecting the hydraulic source with a second chamber of a tilt cylinder, a second oil channel connecting the first oil channel with a second chamber of a trim cylinder, a third oil channel connecting the hydraulic source with a first chamber of the tilt cylinder, a check valve provided between the second chamber of the tilt cylinder and a connection position between the first and second oil channels, a fourth oil channel connected to the third oil channel, and a switch valve provided on the second oil channel and connected with the fourth oil channel. The switch valve has a connection state where communication between the first oil channel and the second chamber of the trim cylinder is closed, and communication between the fourth oil channel and the second chamber of the trim cylinder is open.

An electric inboard motor for a boat, includes a main body, a motor, a motor controller, a motor mounting base, a paddle, a paddle shall, a speed-adjusting handle assembly and a main body overturning locking mechanism. The speed-adjusting handle assembly further includes a speed-adjusting handle spindle, an axle sleeve, a handle sleeve, a button, a spring and at stop block; one end of a handle shell is fixedly connected with the stop block, and the handle sleeve abuts against a stepped face of the stop block, the speed-adjusting handle spindle is connected with the handle shell in a rotation manner, the speed-adjusting handle spindle is connected with the axle sleeve through a first pin, the axle sleeve is fixedly connected with the button, and the axle sleeve is connected with the stop block in a rotation manner and connected with the handle sleeve.