Abstract: A motorcycle lift for use on a flat surface to lift and support a motorcycle, the lift comprising: a frame including a first longitudinal side, a second longitudinal side, a first longitudinal track, and a second longitudinal track; a first support and a second support disposable in a first position with a first support primary arm and a second support primary arm at an angle with the first longitudinal side and the second longitudinal side, respectively, the first support and the second support further disposable in a second position foldable on and resting parallel to the first longitudinal track and the second longitudinal track, respectively; a lift arm; a jack; and a first stabilizing arm assembly, a second stabilizing arm assembly, a third stabilizing arm assembly, and a fourth stabilizing arm assembly operative to stabilize the motorcycle lift.

Abstract: A vertically stowable modular multi-purpose trailer is provided. The trailer includes a forward support section including a first tubular frame having a main body portion with a first upper platform and rear interface side, and forward trailer neck; a pair of caster wheels attached proximate said rear interface; and a first planar deck substantially covering the first upper platform. The trailer further includes a rear support section including a second tubular frame having a second upper platform and a forward interface; and a second planar deck substantially covering the second upper platform. A pair of hinge assemblies interconnecting rear interface and said forward interface. The trailer is adapted to be configured in a deployed configuration, wherein the forward support section and rear support section are longitudinally positioned next to each other forming a generally horizontally oriented common planar platform for supporting a payload.

Abstract: A portable tubular motorcycle lift is provided which utilizes a scissor frame configuration. The scissor frame includes an inner lifting structure and an outer lifting structure rotatably hinged about a common center fulcrum. An upper cradle support is attached to the inner and outer lifting structures. The motorcycle lift has a deployed configuration and a folded, stowable non-deployed configuration which allows the lift to be transported similar to a dolly. To provide the required forces to lift a large motorcycle, an articulated lifting system which includes a jacking device, lifting arm, and linkage arm, is integrated within the inner and outer lifting structures. Other features of the motorcycle lift include a bracing member, rear support section, removable ramp, well chock, remote jacking system, remote pressure release feature, and removable and positionable auxiliary jacking device positioned with the upper cradle support.

Abstract: A vertically stowable modular multi-purpose trailer is provided. The trailer includes a forward support section including a first tubular frame having a main body portion with a first upper platform and rear interface side, and forward trailer neck; a pair of caster wheels attached proximate said rear interface; and a first planar deck substantially covering the first upper platform. The trailer further includes a rear support section including a second tubular frame having a second upper platform and a forward interface; and a second planar deck substantially covering the second upper platform. A pair of hinge assemblies interconnecting rear interface and said forward interface. The trailer is adapted to be configured in a deployed configuration, wherein the forward support section and rear support section are longitudinally positioned next to each other forming a generally horizontally oriented common planar platform for supporting a payload.

Abstract: A vertically stowable modular multi-purpose trailer is provided. The trailer includes a forward support section including a first tubular frame having a main body portion with a first upper platform and rear interface side, and forward trailer neck; a pair of caster wheels attached proximate said rear interface; and a first planar deck substantially covering the first upper platform. The trailer further includes a rear support section including a second tubular frame having a second upper platform and a forward interface; and a second planar deck substantially covering the second upper platform. A pair of hinge assemblies interconnecting rear interface and said forward interface. The trailer is adapted to be configured in a deployed configuration, wherein the forward support section and rear support section are longitudinally positioned next to each other forming a generally horizontally oriented common planar platform for supporting a payload.

Abstract: An interbrace is provided for reducing torquing, twisting, and pivoting between a V-twin engine and a generally separate motorcycle transmission. A first embodiment of the interbrace includes a forward engine flange portion, a rearward transmission end cap portion which functions as a transmission end cap, and a connecting portion interconnecting the engine flange portion and the transmission end portion. A second embodiment of the interbrace includes a forward engine flange portion, a rearward transmission end plate flange portion, and a connecting portion interconnecting said engine flange portion and said transmission end plate flange portion.

Abstract: A cylinder head for a four-cycle internal combustion engine with improved intake port and combustion chamber configuration. The physical shape of the intake port and combustion chamber directs the flow of the incoming air/fuel mixture in a swirl path, which is directed toward the spark plug. In particular, the intake port has a fin at its terminal opening into the combustion chamber. The fin creates a swirling motion in the incoming gasses and also directs the flow of the gasses toward the spark plug. As a result, a greater percentage of the intake charge is in close proximity to the center of the combustion chamber and the spark plug, and hence combustion occurs faster and more completely. In a preferred embodiment of the invention, the portion of the cylinder head that forms the upper surface of the combustion chamber, includes a shear ledge that further acts to direct the flow of the incoming gasses toward the sparkplug.

Abstract: A motorcycle gas tank cover comprising a sheet of material shaped to cover a stock gas tank to modify the appearance of the size and shape of the tank. The gas tank cover is attachable to the gas tank by connectors and fasteners which secure the gas tank in place. The appearance of the gas tank is modified without removing or replacing the gas tank. The present invention provides a method and apparatus to frequently modify the appearance of motorcycle gas tank and the total look of the motorcycle that does not require replacing any motorcycle parts.

Abstract: A motorcycle rear wheel frame is pivotally mounted to the motorcycle main frame. A shaft is positioned on a pivot axis of the rear wheel frame and the main frame of the motorcycle. Rigidly attached to the shaft is one end of a leaf spring. The other end of the leaf spring contacts a transverse cross member of the swing arm so that pivotal movement of said rear frame with respect to the main frame is primarily absorbed by the leaf spring.

Abstract: A motorcycle rear wheel frame is pivotally mounted to the motorcycle main frame. A torsion bar is positioned on the pivot axis, with one end of the bar rotationally fixed with respect to the main frame. The other end of the bar is fixed to the rear frame so that pivotal movement of said rear frame with respect to the main frame is primarily absorbed by said torsion bar.