Abstract: A steering system for a hydrofoil watercraft, wherein a user may ride in a seated, prone, kneeling, or standing position while steering the watercraft without the use of his or her bodyweight. Vertical elevation, left and right roll, and longitudinal direction control of the watercraft is accomplished via steering, resulting in movement of the control surfaces (fins) on the hydrofoil, thus eliminating the need for weight shifting on the flotation device. An electronic remote and/or mounted joystick steering system can be operated either electronically or through direct mechanical linkage to control the direction of the watercraft. The steering system can include an unmanned remote controlled drone hydrofoil watercraft that can be operated remotely.

Abstract: A boat includes a hull, a deck, and a bow hatch. An engine compartment is provided in the hull. The deck is mounted on an upper portion of the hull. The deck includes an air inlet port that opens rearward to supply air to the engine compartment. The bow hatch is attached to the deck. The bow hatch includes a wall that faces the air inlet port.

Abstract: A storage assembly for a vehicle has an outer compartment defined by an outer peripheral wall, an outer compartment lid operatively connected to the outer peripheral wall and moveable between an open position providing access to an interior of the outer compartment and a closed position blocking access to the interior of the outer compartment; and an inner compartment integrally formed within the outer compartment, the inner compartment being defined by an inner peripheral wall. The inner compartment comprises an inner compartment lid operatively connected to the inner peripheral wall and being moveable between an open position providing access to an interior of the inner compartment and a closed position blocking access to the interior of the inner compartment, and a sealing assembly for sealing the interior of the inner compartment when the inner compartment lid is in the closed position. A vehicle including the storage assembly is also disclosed.

Abstract: A dewatering device for an internal combustion engine having an engine body with a lower portion, an exterior wall, and a combustion chamber formed in the engine body, the dewatering device comprising a normally closed dewatering valve detachably secured to the exterior wall, a valve activating member, and a bracket for supporting the valve activating member on the lower portion of the engine body. The dewatering valve is spring loaded and moves between a normally closed position and an open position upon operation of the valve activating member, thereby allowing evacuation of water from the combustion chamber.

Abstract: A personal watercraft comprises a body including a hull and a deck; a joining section including a horizontal portion protruding horizontally from the body, and a vertical portion protruding downward from an outer end portion of the horizontal portion, the joining section joining the hull to the deck; and a stabilizer mounted to the joining section. The joining section includes right and left joining sections, and a stern joining section. The stabilizer is mounted to a rear portion of at least one of the right and left joining sections. The stabilizer has an inclined bottom surface which is located below a bottom surface of the horizontal portion and extends in a forward and rearward direction such that the inclined bottom surface is inclined in a downward direction as the inclined bottom surface extends in a rearward direction.

Abstract: A water jet propulsion boat has a water jet propulsion device in a body, and is propelled by the water jet propulsion device. An electric unit having a waterproof structure and being separate from the body can be removably disposed in a storage section without using any tools. The storage section is defined by a recess provided in the body and being open upward.

Abstract: A mount structure for a two-way valve for a fuel tank of a small boat for improving mountability of the two-way valve while ensuring strength of the deck. The interior space of the boat, which is formed of a hull and a deck, is provided with an engine, a fuel tank, and a duct. One end of the duct is attached to the wall surface of the deck with a mount member. The two-way valve is connected to the breather hose of the fuel tank, and attached to the mount member at one end of the duct from the interior space of the boat. The mount member is integrally provided with a mount pipe for the tube which opens the two-way valve outside the deck.

Abstract: An outboard motor and steering system motion stabilizer is disclosed that positively locks the outboard motor and steering system in the proper position for trailering. The disclosed stabilizer device effectively isolates the road-to-trailer-to-motor shock transfer that is delivered to the lower unit of the outboard motor by traditional transom savers that brace the outboard motor to the trailer. The disclosed stabilizer device is adjustable to fit many different outboard motor brands and sizes with hydraulic tilt and trim systems.

Abstract: A personal watercraft has a hull and a deck. The deck includes a pedestal, two gunnels, two footrests, and a rear platform. A straddle-type seat is disposed on the pedestal. A steering assembly is disposed at least in part forwardly of the seat. An engine is supported by the hull. A propulsion system is connected to the hull and is operatively connected to the engine. A ballast tank is disposed at least in part on the rear platform. The ballast tank includes a rigid ballast tank body, and at least two apertures in the ballast tank body. A connector releasably connects the ballast tank to one of the hull and the deck. A pump fluidly communicates with one of the at least two apertures in the ballast tank body. A ballast tank having a generally L-shaped rigid ballast tank body is also disclosed.

Abstract: A watercraft propelled by a water jet includes an sealed hull portion including an upper deck and a bottom surface, an engine compartment located behind the sealed hull portion and containing a propulsion and steering system including an engine, a bladed impeller driven by the engine for inducting water and forcing the inducted water away from the craft through a directionally displaceable nozzle, and a control lever located on the upper deck including an engine throttle control and a steering control for adjusting the directionally displacement of the nozzle.

Abstract: A personal watercraft is disclosed having a hull and a sub-deck together forming a hull and sub-deck (HSD) assembly. Left and right gunnels have generally vertical inner walls. The HSD assembly has a pedestal disposed on a longitudinal centerline of the watercraft generally between the forward portion of the left inner wall and the forward portion of the right inner wall. The pedestal has generally vertical left and right lateral walls. Left and right side channels are defined between the lateral walls of the pedestal and the forward portions of the inner walls. A rear channel is defined between the rearward portions of the left and right inner walls, and is disposed rearwardly of the pedestal on the longitudinal centerline of the watercraft. The width of the rear channel is narrower than the width of the pedestal. A personal watercraft having only a hull and a deck is also disclosed.

Abstract: A personal watercraft is disclosed having a hull and a sub-deck together forming a hull and sub-deck (HSD) assembly. Left and right gunnels have generally vertical inner walls. The HSD assembly has a pedestal disposed on a longitudinal centerline of the watercraft generally between the forward portion of the left inner wall and the forward portion of the right inner wall. The pedestal has generally vertical left and right lateral walls. Left and right side channels are defined between the lateral walls of the pedestal and the forward portions of the inner walls. A rear channel is defined between the rearward portions of the left and right inner walls, and is disposed rearwardly of the pedestal on the longitudinal centerline of the watercraft. The width of the rear channel is narrower than the width of the pedestal. A personal watercraft having only a hull and a deck is also disclosed.

Abstract: A personal watercraft can be rotated in a correct direction of rotation when the personal watercraft has been overturned, and can thereby be restored to a normal, upright position. The personal watercraft includes a vessel body, an engine, and an exhaust system. The exhaust system includes a muffler, disposed on a first side of the vessel body, and an exhaust pipe connected to the muffler and formed in an inverted U-shape. During operation of the engine, exhaust gas passes through the inverted-U-shaped exhaust pipe and is subsequently discharged to the outside environment via an exhaust port. The exhaust port is disposed on a second side of the vessel body opposite the first side. The vessel body has a hollow water-receiving portion formed therein, on the second side thereof. The water-receiving portion is adapted to be submerged under water when the personal watercraft is overturned in a body of water.

Abstract: A watercraft has an engine that is controlled by an electronic control unit and the watercraft includes a security system. The security system comprises a portable transmitter and a mounted receiver. A predetermined mounting location on the watercraft of a receiver of the security system allows for improved serviceability and improved reception between the transmitter and a corresponding receiver.

Abstract: A body structure of a water-jet propulsion personal watercraft, comprises a body having an inner space defined by a hull and a deck, an engine mounted within the inner space of the body, a water jet pump placed behind the engine and configured to be driven by the engine, and a bulkhead placed behind the engine and configured to separate the inner space into an engine room on a front side within which the engine is contained, and a closed rear space on a rear side, wherein a first drain hole is provided in the closed rear space of the body so as to communicate with an outside of the watercraft.

Abstract: In a personal watercraft 10, an access port structure is provided in which a main service opening 93 and a secondary service opening 98 for maintenance are provided in a deck 20 of the personal watercraft 10, the main service opening 93 and the secondary service opening 98 are provided at positions at which a maintenance operation can be performed with one hand of an operator M let in the main service opening 93 and with the other hand of the operator M let in the secondary service opening 98. For example, the operator can let the left hand thereof into the main opening and let the right hand into the secondary service opening to perform a maintenance operation using both hands. As a result, improvement of the operability of the maintenance operation can be achieved.

Abstract: To provide a jet propulsion watercraft that allows a step, a vent hole, and the like to be easily provided on a bottom surface thereof. A ride plate of a jet propulsion watercraft is a member, which is formed into a substantially rectangular shape in compliance to an opening in a bottom surface of a hull bottom. The ride plate is provided with a lock tab at a front edge thereof, and bolt holes are made in a right and left end portion thereof. The ride plate is further provided with a step portion that forms part of a general bottom surface, since it is flush with the general bottom surface, a higher level surface that forms a flat surface higher than the step portion by a predetermined distance, and a pair of vent holes that pass vertically through the higher level surface at a position therein closer to the step portion.

Abstract: A body structure of a water-jet propulsion personal watercraft, comprises a body having an inner space defined by a hull and a deck, an engine mounted within the inner space of the body, a water jet pump placed behind the engine and configured to be driven by the engine, and a bulkhead placed behind the engine and configured to separate the inner space into an engine room on a front side within which the engine is contained, and a closed rear space on a rear side, wherein a first drain hole is provided in the closed rear space of the body so as to communicate with an outside of the watercraft.

Abstract: A personal watercraft wherein air is introduced into a body through a gap formed between the body and a front hood and prohibiting permeation of sea water or other water in the body through the gap. A personal watercraft is basically configured such that a handlebar is disposed on the center line in the width direction of a body, a front hood for covering an upper front portion of the body is disposed in front of the handlebar, and left and right side covers are disposed at left and right lower edges of the front hood, respectively, wherein air is introduced into an in-body space through left and right gaps S between the side covers and the front hood. This personal watercraft includes left and right labyrinth structures for allowing an introduction of air into the in-body space and prohibiting permeation of water in the in-body space are provided in the gaps S between the front hood and the side covers, respectively.

Abstract: An induction system for a watercraft is configured to guide air into an engine disposed within the watercraft for combustion therein. The induction system includes an inlet assembly. The inlet assembly includes various constructions for enhancing water preclusive effects.

Abstract: A personal watercraft wherein air is introduced into a body through a gap formed between the body and a front hood and prohibiting permeation of sea water or other water in the body through the gap. A personal watercraft is basically configured such that a handlebar is disposed on the center line in the width direction of a body, a front hood for covering an upper front portion of the body is disposed in front of the handlebar, and left and right side covers are disposed at left and right lower edges of the front hood, respectively, wherein air is introduced into an in-body space through left and right gaps S between the side covers and the front hood. This personal watercraft includes left and right labyrinth structures for allowing an introduction of air into the in-body space and prohibiting permeation of water in the in-body space are provided in the gaps S between the front hood and the side covers, respectively.

Abstract: A small watercraft includes expanded storage capacity so as to accommodate more of the type of articles that rider's typically what to carry on the watercraft. Such articles include, for example, towels, water skis, tow ropes, etc. At least one of the storage compartments on the watercraft is formed by an opening on an upper deck section. A container is affixed to the deck below the opening and has an upper end defined by a flange that extends from walls of the container. The flange is attached to an interior wall of the upper deck section so that the container and the corresponding upper deck section form a storage compartment. The upper end of the container, however, has a larger area than the opening in the deck so as to maximize the storage space within the compartment without weakening the deck and minimizing the area through which water can enter the hull.

Abstract: A small watercraft includes an internal combustion engine having an air induction system that minimizes the volume of water delivered to the combustion chambers and maintains a generally low center of gravity. The induction system includes an intake silencer which is divided into an upstream chamber and a downstream chamber. The chambers communicate with each other through a passageway. The upstream chamber has an inlet for drawing air from the engine compartment, and the downstream chamber has an outlet communicating through a conduit with an intake chamber. The inlet and outlet are positioned in an upper portion of the silencer and the passageway is positioned in a lower portion of the silencer. Thus, air flowing through the silencer must change direction and water in the air will be separated from the air flow and deposited on the inner walls of the silencer. Each of the upstream and downstream chambers has a drain port through which water may be evacuated.

Abstract: A watercraft is provided that includes a rearwardly facing ventilation opening, which allows ambient air to flow into a hull assembly of the watercraft. A seat is provided that has a seating surface configured to accommodate at least one rider seated thereon. The seat is mounted on the hull assembly such that the seat covers the ventilation opening of the hull assembly to obstruct water from flowing therein and forms one or more air pathways between the seat and hull assembly. Each of the one or more air pathways has one end open to the atmosphere and an opposite end open to the ventilation opening to enable air to flow between the atmosphere and the ventilation opening between the seat and the hull assembly via the one or more air pathways.

Abstract: An induction system for a watercraft is configured to guide air into an engine disposed within the watercraft for combustion therein. The induction system includes an inlet assembly. The inlet assembly includes various constructions for enhancing water preclusive effects.

Abstract: A small watercraft includes expanded storage capacity so as to accommodate more of the type of articles that rider's typically what to carry on the watercraft. Such articles include, for example, towels, water skis, tow ropes, etc. At least one of the storage compartments on the watercraft is formed by an opening on an upper deck section. A container is affixed to the deck below the opening and has an upper end defined by a flange that extends from walls of the container. The flange is attached to an interior wall of the upper deck section so that the container and the corresponding upper deck section form a storage compartment. The upper end of the container, however, has a larger area than the opening in the deck so as to maximize the storage space within the compartment without weakening the deck and minimizing the area through which water can enter the hull.

Abstract: A watercraft has a water preclusion structure for internal ventilated cavities. A ventilation tube connects an internal cavity, such as an engine compartment, with the atmosphere for allowing air transfer to or from the cavity. A water preclusion structure is disposed between the atmosphere and the cavity. In one arrangement, water repellant filters are installed over an end of a tube that allows the air transfer. In another arrangement, an air box that communicates with the cavity contains air inlets that have water repellant filters disposed between the outlet of the air box and the inlet of the air box. The air box also contains a drain to allow water removed from the air to drain out of the air box.

Abstract: A personal watercraft has an improved ventilation system for an engine compartment. The ventilation system is disclosed in the context of both two-cycle and four-cycle engines. The system includes a plurality of ducts that are strategically positioned on the watercraft. One of the ducts extends through a sidewall of a pedestal that carries an operator seat. Another of the ducts extends through a bottom plate connecting the seat to the hull. The ducts are configured to create airflow across various engine and exhaust system components. For instance, a portion of an exhaust system is interposed between two ends of two separate ducts in one arrangement. In another arrangement, a duct draws or forces air past a portion of the exhaust system. The portion of the exhaust system can include a catalyst. The system also creates a flow of air across a cylinder head in one arrangement and a lubricant reservoir in another arrangement.

Abstract: A small watercraft includes expanded storage capacity so as to accommodate more of the type of articles that rider's typically what to carry on the watercraft. Such articles include, for example, towels, water skis, tow ropes, etc. One of the storage compartments on the watercraft may be formed by an opening on an upper deck section. A container is affixed to the deck below the opening and has an upper end defined by a flange that extends from walls of the container. The flange is attached to an interior wall of the upper deck section so that the container and the corresponding upper deck section form a storage compartment. The upper end opening of the container, however, has a larger area than the opening in the deck so as to maximize the storage space within the compartment without weakening the deck, and at the same time to minimize the area through which water can enter the hull.

Abstract: A propulsion unit assembly for a personal watercraft provides for the quick and easy alignment of a propulsion device of the assembly relative to the longitudinal axis of the watercraft when mounting the propulsion device on the hull of the watercraft. The mounting arrangement includes a mounting plate having stoppers which cooperate with bosses formed on the front wall of the tunnel of the watercraft to properly align the mounting plate before fixing the plate to the hull and mounting the propulsion device thereto. In addition, the disclosed propulsion unit assembly includes an integrally formed cooling water supply system which utilizes the existing high-capacity jet pump unit to provide pressurized cooling water for cooling of the engine and associated watercraft components.

Abstract: A bulkhead structure for a personal watercraft reduces the weight of the personal watercraft while maintaining the rigidity of an outer shell of a body by utilizing the inside space of the body. Alternatively, the structure can further enhance the rigidity of the outer shell of the body without increasing the weight. The hull and a deck are joined to form the outer shell of the body of the personal watercraft. A plate-shaped member spans substantially horizontally in a direction of the width of the body of the personal watercraft and has right and left sides fixed in the vicinity of a junction portion of the hull and the deck.

Abstract: A small watercraft includes expanded storage capacity so as to accommodate more of the type of articles that rider's typically what to carry on the watercraft. Such articles include, for example, towels, water skis, tow ropes, etc. At least one of the storage compartments on the watercraft is formed by an opening on an upper deck section. A container is affixed to the deck below the opening and has an upper end defined by a flange that extends from walls of the container. The flange is attached to an interior wall of the upper deck section so that the container and the corresponding upper deck section form a storage compartment. The upper end of the container, however, has a larger area than the opening in the deck so as to maximize the storage space within the compartment without weakening the deck and minimizing the area through which water can enter the hull.