Abstract: A lift arrangement for a marine engine permits the output shaft of the engine to be vertically oriented when lifting the engine. The engine configuration results in a center of gravity located along a vertical axis which passes through a flywheel assembly of the engine. The flywheel assembly sits above an upper end of the engine block. The lift arrangement includes a pair of hangers mounted to the top end of the engine with the flywheel assembly positioned generally therebetween. The hangers are attached on opposite sides of a central, longitudinal plane of the engine. The hangers also are arranged such that a line between the hangers intersects the central, longitudinal plane at a point proximate to the vertical axis which passes through the center of gravity of said engine. With a cable connected to each hanger, the engine can hang by the cable from a lift with its output shaft vertically oriented, without removing or interfering with the flywheel assembly.

Abstract: An outboard engine assembly for use on a boat includes an engine having a substantially vertical crankshaft and a pair of banks of vertically juxtaposed horizontal cylinders, the banks being arranged in a V shape, the cylinders of the banks having axes angularly spaced from each other by an angle of 90.degree. or smaller. The outboard engine assembly has a propeller operatively connected to a downwardly extending vertical shaft coupled to the crankshaft. The engine and the vertical shaft is accommodated in a case assembly. The engine and the case assembly are installed on the hull of the boat by upper and lower support members. Vibroisolating rubber dampers are disposed between the boat hull and the upper and lower support members for isolating vibrations from the engine from the boat hull.

Abstract: A plurality of cylinders are defined in a single cylinder block, and a single cylinder head common to the cylinders is mounted on the cylinder block. Exhaust passages are provided in the cylinder head at a location corresponding to an inner side and central portion of a V-shape formed by the cylinders, the exhaust passages communicating with the cylinders, respectively. Intake passages are provided in the cylinder head at a location corresponding to opposite outside positions of the V-shape, the intake passages communicating with the cylinders, respectively. The intake passages open into a side of the cylinder head on opposite sides of the V-shape, and fuel injection nozzles provided in the intake passages, respectively. The exhaust passage extend parallel to a crankshaft within the cylinder head and open into the corresponding side of the cylinder head. A water jacket is defined around the exhaust passages to surround the exhaust passages.

Abstract: A compact balancer shaft arrangement for a four-cycle, internal combustion engine includes a pair of opposing balancer shafts driven by an engine crankshaft. Each balancer shaft has a shorter length than the crankshaft with its center of mass longitudinally offset from the midpoint of the crankshaft. The balancer shafts are driven from a lower end of the crankshaft and extend upwardly in a direction parallel to the crankshaft. The short length of the balancer shafts presents a compact assembly and provides space for other engine accessories.

Abstract: An engine of an outboard motor includes an improved engine component layout to minimize the size of the engine and to improve the performance of the components. A separator of a crankcase ventilation system is located on a cam cover outside the cam chamber in order to reduce the size of the cam cover while providing the necessary spacing between the separator and the valve mechanism within the cam chamber. A fuel pump is positioned at about the center of the cam cover, beneath the separator, to generally balance the length of fuel travel to each of the carburetors. A fuel filter also is located on the cam cover, beneath the fuel filter, to generally isolate the fuel filter from the effects of the heated cylinder head and block. The arrangement of these components does not interfere with the hinge-like travel of a top cowling, which surrounds the engine, relative to a lower tray.

Abstract: A number of embodiments of V-type outboard motors including 4-cycle engines with a exhaust system being disposed between the cylinder banks so as to simplify the exhaust manifolding and permit it to flow downwardly directly to the exhaust pipe in the driveshaft housing lower unit so as to reduce engine height. Various porting and cooling arrangements are disclosed. The induction system for the engine is disposed on the outside of the engine and a variety of induction systems and throttle control arrangements are also disclosed.

Abstract: Disclosed herein is an outboard motor comprising a cylinder block including a lower horizontal drive shaft housing mounting surface, and a cylinder head mounting surface extending upwardly from the drive shaft housing mounting surface, a drive shaft housing including a peripheral outer surface including an upper end, a cylinder block mounting surface at the upper end, and a portion extending rearwardly from the cylinder block mounting surface and having therein a vertically open bore located forwardly of the outer surface, and a cylinder head comprising a cylinder block mounting surface fixed to the cylinder head mounting surface and including vertically spaced first and second recesses adapted to respectively form portions of first and second combustion chambers and respectively including first and second exhaust ports, a bottom surface extending transversely rearwardly from the cylinder block mounting surface of the cylinder head, a projection extending downwardly from the bottom surface and into the bore,

Abstract: Two embodiments of flexible transmitter tensioning devices that afford a screw threaded operation for moving an idler pulley to vary the adjustments. The construction lends itself to incorporation in an outboard motor.

Abstract: Disclosed herein is an outboard motor comprising a cylinder block having a horizontally extending lower mounting surface and a rearwardly located vertically extending cylinder head mounting surface, a cylinder head fixed to the cylinder head mounting surface, extending rearwardly from the cylinder block, and including a bottom wall portion having therein a rocker arm support shaft aperture and a camshaft aperture, a camshaft supported vertically and horizontally in the cylinder head about an axis located rearwardly of the cylinder head mounting surface, a rocker arm support shaft supported vertically and horizontally in the cylinder head about an axis located rearwardly of the cylinder head mounting surface, and a lower unit including a driveshaft housing supporting a propeller fixed to the cylinder block lower mounting surface and including an upper rearward profile located forwardly of the camshaft aperture and the rocker arm support shaft aperture and extending so as to enable, when the housing is fixed to

Abstract: An outboard engine assembly for use on a boat includes an engine having a substantially vertical crankshaft and a pair of banks of vertically juxtaposed horizontal cylinders, the banks being arranged in a V shape, the cylinders of the banks having axes angularly spaced from each other by an angle of 90.degree. or smaller. The outboard engine assembly has a propeller operatively connected to a downwardly extending vertical shaft coupled to the crankshaft. The engine and the vertical shaft is accommodated in a case assembly. The engine and the case assembly are installed on the hull of the boat by upper and lower support members. Vibroisolating rubber dampers are disposed between the boat hull and the upper and lower support members for isolating vibrations from the engine from the boat hull.

Abstract: A lower motor cover attachment for an outboard motor includes a first lower motor cover half having an outer surface, an inner surface and an overboard water indicator opening, a second lower motor cover half having an outer surface and an inner surface, attachment formations located on respective inner surfaces of the first and second lower motor cover halves for use in releasably attaching the motor cover halves to the motor, and at least one fastener for engaging corresponding attachment formations and fastening the attachment formations of the first and second halves to the motor, wherein the overboard water indicator opening is disposed on the first lower motor cover so as to be substantially coaxial with at least one of the attachment formations, such that a tool inserted through the opening may engage the fastener in at least one of the attachment formations.

Abstract: Several embodiments of induction systems for two cycle, crankcase compression, internal combustion engines employed for powering outboard motors. The outboard motor is supported for tilt and trim movement and the induction system is designed so as to extend from the intake ports of the engine in a generally rearward direction so as to be substantially unaffected by changes in trim angle and acceleration. The invention is described in conjunction with both V-type and inline type of engines.

Abstract: An outboard marine drive (10) has a powerhead (20) including an internal combustion engine (22), an adaptor plate (24) mounted to the engine, and a lower gearcase (26) including a torpedo housing (28) rotatably mounting a propeller (30), wherein the lower gearcase is directly mounted to the adaptor plate without a driveshaft housing therebetween. An enclosing cowl (68) has left and right sidewalls (72 and 74), a back wall (76), and a top wall (78), and is open to the bottom (80) and open to the front (82) facing the boat. The adaptor plate is mounted to the bottom of the engine and closes the open bottom of the cowl in a horizontal plane, and the engine has left and right sides (84 and 86) closing the open front of the cowl in a vertical plane.

Abstract: An outboard motor and particularly an improved protective cowling for an outboard motor that provides a very simple air inlet but one which is effective in preventing the passage of water to the interior of the protective cowling and for separating and draining water from the inducted air. The drained water is returned directly to the atmosphere. The air inlet system for the protective cowling is formed by only two members so as to facilitate a simple and low cost construction.

Abstract: An outboard engine assembly for use on a boat has an engine mechanism including in an upper region thereof an engine having a substantially vertical crankshaft and a vertical array of substantially horizontal cylinders. The engine mechanism is mounted on the stern of the boat by an attachment. The attachment includes a stern bracket adapted to be fixed to the stern of the boat, a swivel case supported on the stern bracket for vertical angular movement, a substantially vertical swivel shaft supported on the swivel case for horizontal angular movement, and a pair of upper and lower supports mounted on the swivel shaft and supporting the engine mechanism. The engine has joint members coupled to the upper support at a position between adjacent two crankshaft counterbalances which correspond to adjacent two cylinders, respectively, as viewed in side elevation, the joint members having respective portions located within a path of the two crankshaft counterbalances as viewed in plan.

Abstract: The present invention comprises an outboard motor (1) having a number of special features which prevent the ingress of water so that it can be operated underwater and a boat (10) also having a number of special features to be used together with the outboard motor (1). The features on the outboard motor (1) include a device for creating a water-tight seal on the carburetor shaft mountings (24, 26); a device for protecting the air intake of the carburetor against ingress of water (8, 9, 11, 13; 9, 14, 15); a bellows (28) coupled to and encapsulating the starter motor (5); a sealed housing (32) for the electrical system having a moisture-tight seal around each wire at the junction with the sealed housing; a one-way valve (22) disposed in the exhaust (6); and means for protecting the atmospheric vents (20, 21) against ingress of water. The features on the boat (10) include such an outboard motor (1) plus a ducted air intake (11, 15) for the carburetor (2 ) passing through an air sump (9).

Abstract: A cowling structure for a marine propulsion engine is disclosed which effectively prevents water from entering the air intake opening, while at the same time maintains optimum engine performance. The cowling structure has an engine cowl which encloses the engine and which defines an air intake opening. An air duct molding is associated with the engine cowl such that it extends over the air intake opening and, in conjunction with the engine cowl, defines an air inlet facing toward a rear portion of the cowling structure. A wall extends between the engine cowl and the air duct molding and is located between the air intake opening and the air inlet. Sidewalls, which are spaced apart a distance less than the width of the wall, direct any water entering the air inlet towards the wall to effectively prevent the water from entering the air intake opening.

Abstract: A latch assembly for releasably securing a cowling of a marine propulsion engine comprising a front latch mechanism which is interconnected with at least one rear latch mechanism by a wire cable having a slack adjuster along its length. In a preferred embodiment, a single front latch mechanism and two rear latch mechanisms are linked by the wire cable to an operating lever so that movement of the operating lever causes all of the latches to be disengaged simultaneously. The slack adjuster is simple and easily adjustable to remove slack along the entire cable.

Abstract: A wiring arrangement for an outboard motor including a printed circuit board fitted within a magneto generator cover that is secured to the top of the engine of the outboard motor overlying the rotor. The printed circuit board has projecting portions that extend radially outward from a generally disk-shaped body for coupled connection with branch wires, one of which acts as an output line extending from a remote control unit within an associated watercraft. The other branch wires extend downwardly to supply power to various electrical components of the outboard motor.

Abstract: Disclosed herein is an engine comprising a closed deck cylinder block including a cylinder bore having an outer end, a counter bore at the outer end of the cylinder bore, and an outer wall including an outer cylinder head mounting surface extending from the counter bore. In addition, the engine includes a cylinder liner received in the cylinder bore and defining, with the counter bore, an annular groove in the cylinder head mounting surface, and a cylinder head including a cylinder block mounting surface engaged with said cylinder head mounting surface of said cylinder block. Still further in addition, the engine includes a seal member located in the annular groove and engaged with the cylinder block and the cylinder head, and a plurality of fasteners extending between and tightly securing together the cylinder block and the cylinder head.

Abstract: A motor cover seal for sealing opposed edges of upper and lower outboard motor convers includes an elongate body constructed and arranged for disposition between the opposed edges of the upper and lower covers, an attachment portion on the body configured to be secured to the lower motor cover, and a compressible portion on the body configured to be compressed by the closing of the upper motor cover against the lower motor cover.

Abstract: Two embodiments of a cowling and air inlet device for a power head of an outboard motor are disclosed and described which include an air inlet open only on one or both sides of the cowling so as to insure adequate air induction to the engine but to prevent water from entering the interior of the cowling and the engine induction system. The air inlet is formed in a upper rear surface of the cowling and has formed therein an air intake duct for supplying air to the engine induction system. A cover is positioned above the air intake duct to cooperate in defining a flow path for air through the air inlet to the air intake duct and to prevent foreign objects from falling in the air intake duct.

Abstract: A molded lower motor cover for an outboard motor includes a first cover portion, a second cover portion, the second cover portion generally being a mirror image of the first cover portion, a laterally opening groove formation disposed generally horizontally relative to an inner face of an outer wall of each of the cover portions, each groove formation being integrally joined to the wall by a web configured so that its attachment to the inner face will not be visible on the external surface of the outer wall. When the first and second cover portions are fastened to each other, the groove formations sealingly accommodate an upper portion of the motor exhaust housing.

Abstract: A molded control panel for an outboard motor includes at least one motor control access opening, and is configured for attachment to the lower motor covers of the motor so that the lower covers may be removed without the removal or disassembly of the motor control systems.

Abstract: A marine propulsion device comprising a lower unit, a propeller shaft rotatably supported by the lower unit and adapted to support a propeller, an engine supported by the lower unit and drivingly connected to the propeller shaft, and a cowl assembly surrounding the engine and including a lower cover member having an upper end, an upper cover member having a lower end, a seal located between the upper end and the lower end, and interengaging mechanisms on the seal and on one of the upper and lower cover members for securing the seal to the one of the upper and lower cover members.

Abstract: Disclosed herein is an engine comprising a closed deck cylinder block including a cylinder bore having an outer end, a counter bore at the outer end of the cylinder bore, and cylinder liner received in the cylinder bore and defining, with the counter bore, a U-shaped annular groove in the cylinder head mounting surface. A seal is located in the groove to provide a seal between the cylinder head and cylinder block. There is a pressure relief valve to control flow to the coolant jacket in the cylinder heat from the coolant jacket in the cylinder block. At low speeds the valve is closed so as to not overly cool the cylinder head.

Abstract: A cowling and air intake device is provided for the powerhead of an outboard motor which includes an air intake duct with a downwardly facing opening. The duct is mounted within an air inlet cavity formed within an upper rear portion of the cowling. A cover is secured to the cowling to form the top surface of the air inlet and to cover the intake duct. The air inlet inducts air from the atmosphere through a rearwardly facing opening wherein the air is drawn up into the intake duct for supply to the induction system of the outboard motor's internal combustion engine. The downwardly facing intake duct insures that water will not enter into the interior of the cowling or into the engine induction system.

Abstract: A latching mechanism for connecting the top portion and tray of a cowling which surrounds an internal combustion engine of an outboard motor. In the preferred embodiment, a pair of keepers, one secured to the front side of the top portion of the cowling and the other secured to the rear side of the top portion, engage with a connecting mechanism, secured on the front and rear sides of the tray of the cowling, to connect the top portion and tray of the cowling with each other. An operating lever supported for rotation about a vertical shaft is operatively connected to the connecting mechanism such that rotation of the lever releases the connecting mechanism from the keepers so that the top portion of the cowling can be detached from the tray.

Abstract: A cowling arrangement and fitting structure for an outboard motor is provided for positioning a top cover of the cowling onto a cowling tray member. Column shaped bosses are preferably integrally formed on the inner wall of the top cover and are adapted for engagement with corresponding positioning bosses preferably integrally formed on the inner wall of the tray member. This fitting structure produces a flush and accurate fit between the adjoining surfaces of the top cover and tray.

Abstract: An outboard motor comprising a lower unit, a propeller shaft rotatably supported by the lower unit and adapted to support a propeller, and an internal combustion engine supported by the lower unit and drivingly connected to the propeller shaft, the internal combustion engine including an engine block defining at least one cylinder and having a lifting hook integrally formed on the engine block.

Abstract: In an apparatus for fixing a cowling assembly of an outboard motor, a base member is provided with a locking plate and an intermediate plate. The locking plate has a jaw portion and a stay-receiving face for clamping a stay when the cowling assembly is locked. The intermediate plate has a first stopper portion, a second stopper portion and a cam-receiving portion, In the locked state of the cowling assembly, the first stopper portion is engaged with the locking plate. In the released state of the cowling assembly, the second stopper is engaged with the locking plate. The intermediate plate is moved in a direction to release the cowling assembly, by means of an operation lever arranged at a front portion of a bottom cowling. A spring interposed, in its compressed form, between a spring seat of the locking plate and a spring seat of the intermediate plate urges the locking plate and the intermediate plate to rotate in such a direction as to engage the locking plate with the stopper portions.

Abstract: A strain relief assembly for an outboard motor for relieving strain on wires, cables, lines or the like which extend between the boat and the cowl assembly which encloses the power head of the outboard motor. The stain relief assembly is preferably disposed within an opening formed in one of the cowl sections, and comprises a two-piece member. The two-piece member includes a series of indentations which cooperate to clamp the wires, cables, lines or the like therebetween when screwed together. With the strain relief assembly fixed to the wall of the cowl section forming the opening, this acts to maintain the wires, cables or lines in position relative to the cowl section for relieving strain thereon during movement of the outboard motor. A fuel line strain relief assembly is also provided, comprising a stem fixed to the two-piece member. An external fuel line supplies fuel to the stem, which is communicated therethrough to an internal fuel line extending between the stem and the power head.

Abstract: A cowling assembly for an outboard unit wherein a first cowling assembly defines a cavity in which the powering internal combustion engine is contained and which has a top surface, a second cowling assembly having a top surface is affixed to this first cowling assembly and interengaging portions between the two top surfaces ridigify the top surface of the second cowling assembly without adding significantly to the weight.

Abstract: A locking mechanism for a two piece cowling for a marine engine includes a latch that is pivotally mounted on the lower cowling piece and includes a handle disposed within a recess on the exterior of the lower cowling so that when the latch is in its locked position, the handle is contained by the recess and is flush with the cowling so as not to detract from the styling of the cowling and the longitudinal axis of the elongated handle is disposed parallel to forces acting on the lower unit of the engine so as to resist forces tending to move the handle to its release position.

Abstract: A marine outboard drive unit (10) includes a powerhead (12) having a two-cycle internal combustion engine (14), a lower depending driveshaft housing (16) extending downwardly from the powerhead and having a lower submerged propeller (18), and an oil tank (30) mounted adjacent the driveshaft housing (16) below the powerhead (12). The oil tank (30) has a U-shape and extends partially around and conforms to the driveshaft housing (16) and is mounted in the space between the driveshaft housing (16) and a trim cover (34) which extends downwardly from the engine cowl (24). Particular mounting structure, rattle-reducing structure, and visual oil level monitoring structure is provided.

Abstract: An outboard marine motor housed by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing a water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. A cut-out portion in the side of the lower cowl assembly is adapted to receive various cables and shift levers for different configurations of outboard marine motors, e.g. a manual tiller-operated motor including shift controls, a manual tiller-operated motor having a separate shift lever, and a remote-control motor having throttle and shift cables leading into the engine cavity. A sealing mechanism is provided at the cut-out portion of the lower cowl assembly, to provide a water-resistant seal at the points of entry of the cables or shift lever through the lower cowl section.

Abstract: A cowl assembly for an outboard motor, including an upper cowl section and a lower cowl section, is provided with an improved latch assembly. The latch assembly incorporates a pivotable hook connected to one of the cowl sections, which is engageable with a hook-engaging member provided on a catch mechanism connected to the other cowl section. Due to the presence of a compressible seal between the upper and lower cowl sections, relative vertical movement is possible therebetween, and thereby between the hook and the hook-engaging member. The improved latch mechanism incorporates a retainer mechanism for preventing disengagement of the hook from the catch mechanism during such relative vertical movement of the cowl sections, for ensuring that the cowl sections remain secured together during compression of the compressible seal between the cowl sections.

Abstract: A locking mechanism for a two piece cowling for a marine engine includes a latch that is pivotally mounted on the lower cowling piece and includes a handle disposed within a recess on the exterior of the lower cowling so that when the latch is in its locked position, the handle is contained by the recess and is flush with the cowling so as not to detract from the styling of the cowling.

Abstract: A cowl and air inlet assembly for a marine outboard engine has a first cowl half having an edge portion with a tongue extending from the edge and a second cowl half having an edge portion with a groove for receiving the tongue of the first cowl half when the two halves are joined. A bonding material is disposed along the joint formed by the tongue and groove to permanently join the two cowl halves.

Abstract: An outboard marine motor housed by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing a water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. A one-piece lower skirt extends downwardly from the lower cowl section at the upper end of the depending gear case. The one-piece lower skirt is adapted for easy removal and attachment to facilitate servicing of the motor, and may be connected to the bottom of the lower cowl section in a plane substantially transverse to the longitudinal axis of the depending gear case.

Abstract: An outboard marine motor housed by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing a water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. An improved air intake duct prevents the entry of water into the interior cavity of the cowl assembly. The air intake duct is disposed in an air intake opening provided in the top rear portion of the upper cowl section. The air intake duct includes a bottom wall, a pair of upstanding side walls connected thereto, and an upstanding back wall extending between the side walls. The top wall has an upwardly facing opening which forms an air inlet for allowing air to pass into the interior of the cowl assembly, to provide combustion air for the engine of the outboard motor.

Abstract: An engine has a cylinder block having a vertical array of cylinders, a crankcase joined to one side of the cylinder block, a cylinder head joined to an opposite side of the cylinder block, pistons reciprocally movable in the cylinders, a crankshaft vertically extending through the engine block and rotatably supported in the cylinder block and the crankcase, the crankcase having couterweights, connecting rods interconnecting the pistons and the crankshaft, and a balancer mechanism coacting with the crankshaft. The balancer mechanism is disposed upwardly of the cylinder block and accommodated in a balancer housing projecting from upper surfaces of the cylinder block and the crankcase. The balancer mechanism comprises a driver gear mounted on the crankshaft, first and second balancer shafts extending parallel to the crankshaft, and first and second balancers mounted respectively on the first and second balancer shafts and operatively coupled to the driver gear.

Abstract: An outboard marine motor housing by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing a water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. A rotary latch mechanism includes an internal hook connected to a shaft leading to an external rotatable handle. The shaft is supported on either side of the point of engagement of the hook to the shaft. In particular, a bearing is formed integrally with the bottom of the lower cowl section and is adapted to receive an end of the shaft for support thereof. The catch for the latch mechanism is provided with a hook-receiving member having support on both sides of the point of engagement of the hook-receiving member by the hook.

Abstract: A number of embodiments of outboard motors incorporating liquid storage tanks within the protective cowling and wherein the cowling includes a removable cowling portion that cooperates with the fill neck for closing the fill neck when the removable cowling portion is in place. In some embodiments, the fill neck is accessible by a pivoted closure member which seals the fill neck and which defines an air inlet opening to the cowling. In other embodiments, the tank has a bellows-type expandable fill neck that pops up when the fill neck is accessed.

Abstract: An outboard marine motor housed by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. A cut-out portion in the side of the lower cowl assembly is adapted to receive various cables and shift levers for different configurations of outboard marine motors, e.g. a manual tiller-operated motor having a separate shift lever, and a remote-control motor having throttle and shift cables leading into the engine cavity. A sealing mechanism is provided at the cut-out portion of the lower cowl assembly, to provide a water-resistant seal at the points of entry of the cables or shift lever through the lower cowl section.

Abstract: A marine propulsion device comprising a propulsion unit adapted to be mounted on the transom of a boat for pivotal movement relative to the transom about a steering axis, the propulsion unit including a rotatably mounted propeller, and an engine drivingly connected to the propeller and including a water jacket, a water pump connected to the water jacket for forcing cooling water through the water jacket to cool the engine, a fluid pump driven by the engine, a conduit communicating between the water jacket and the atmosphere, and a fluid cooler communicating with the conduit to receive cooling water from the water jacket and communicating with the fluid pump for cooling the fluid pumped thereby.

Abstract: A marine propulsion device comprising a propulsion unit including a rotatably mounted propeller, and an engine drivingly connected to the propeller and including an air intake, a cowl assembly surrounding the engine and including a front located adjacent the air intake and a rear including an air inlet, and a baffle for isolating air from the engine and for conducting the air around the engine from the air inlet to the air intake.

Abstract: Two embodiments of flywheel covers for outboard motors that are readily removable from their connection to the motor without special tools so as to facilitate emergency starting.

Abstract: A V-type internal combustion engine in which cylinders each including a cylinder skirt portion projecting into a crankcase are arranged in a V-shape, a governor device is disposed within the crankcase, central axes of the cylinders are offset from each other in an axial direction along a crankshaft supported in the crankcase, and a rotational speed transmission system for transmitting a rotational speed of a governor gear to a governor lever shaft is engages a rearward side of the cylinder skirt portion of a cylinder spaced forward from a rearward most cylinder as viewed among the crankshaft central axis. A single intake manifold is adapted to bridge cylinder heads in a V-bank defined between the cylinders. A carbureter is in fluid communication with the intake manifold. One end of the governor lever shaft is disposed in the V-bank. An intake control for controlling the carbureter in cooperation with one end of the lever shaft is disposed in the vicinity of the carbureter.

Abstract: An improved lubricating system for a two-cycle outboard motor having a vertically extending crankshaft. The lubricating system employs a crankshaft driven pump and circulating system that permits pressure lubricating without necessitating elongation of the crankshaft or engine. The engine is enclosed within a cowling and an oil sump is conveniently located within the cowling and is accessible through a cover door of the cowling for replenishment of the oil supply without removal of the cowling.