Abstract: A wing (1) including a vertical plate (2) and a horizontal plate (3) is placed in the throat of a carburetor (41) or throttle body (93). The wing (1) is located adjacent to and downstream from the throttle valve (46, 94). The edges (6, 7, 13, and 131) are held in a spaced apart relationship from the carburetor wall (44) by locating tabs (4, 14, 15 and 16) which abut the wall (44). Securing tabs (5, 24) extend from the edges and grip a gasket or boot associated with an existing intake manifold. The wing (1) causes the air/fuel mixture exiting a carburetor to follow channelized parallel paths (78, 81 and 84) into the intake manifold.

Abstract: A wing (1) including a vertical plate (2) and a horizontal plate (3) is placed in the throat of a carburetor (41) or throttle body (93). The wing (1) is located adjacent to and downstream from the throttle valve (46, 94). The edges (6, 7, 13, and 131) are held in a spaced apart relationship from the carburetor wall (44) by locating tabs (4, 14, 15 and 16) which abut the wall (44). Securing tabs (5, 24) extend from the edges and grip a gasket or boot associated with an existing intake manifold. The wing (1) causes the air/fuel mixture exiting a carburetor to follow channelized parallel paths (78, 81 and 84) into the intake manifold.

Abstract: Air flow from the airbox (57) to the carburetor of an internal combustion engine is regulated by a plurality of valve bodies (66) fitted with rotatable lids (77) which permit infinite adjustment of air flow between a fully closed and fully open position. In an alternate embodiment, a rectangular valve is used that has a relatively lower profile and uses a sliding door (94) to permit manual adjustment of airflow to the airbox (57).

Abstract: Air flow from the airbox (57) to the carburetor of an internal combustion engine is regulated by a plurality of valve bodies (66) fitted with rotatable lids (77) which permit infinite adjustment of air flow between a fully closed and fully open position. In an alternate embodiment, a rectangular valve is used that has a relatively lower profile and uses a sliding door (94) to permit manual adjustment of airflow to the airbox (57).

Abstract: A variable speed belt drive having adjustable mass and moment of inertia camweights is shown for use primarily in conjunction with snowmobile, golf cart, all terrain vehicle and small automobile engines. In one version, the camweight includes a series of perforations or score lines surrounding a cross section of the camweight arm. The perforations define a volume that may be snapped or cut off of the arm with a suitable tool. Also, a series of bores are formed through the arm. In order to increase the mass of the arm, a molten metal or similar flowable material may be poured into one or more of the bores and allowed to cure. In another version of the invention, a reduced cross section arm serves as a base onto which shims are added or reoriented in order to achieve the desired mass and moment of inertia characteristics.

Abstract: A variable speed belt drive (1) having adjustable mass and moment of inertia camweights (40, 56) is shown for use primarily in conjunction with snowmobile, golf cart, all terrain vehicle and small automobile engines. In one version, the camweight (40) includes a series of perforations or score lines (47, 48, 49) surrounding a cross section of the camweight arm (45). The perforations define a volume that may be snapped or cut off of the arm (45) with a suitable tool. Also, a series of bores (52, 53, 54) are formed through the arm (45). In order to increase the mass of the arm (45), a molten metal or similar flowable material may be poured into one or more of the bores (52, 53) and allowed to cure. In another version of the invention, a reduced cross section arm (59) serves as a base onto which shims (64, 65, 66) are added or reoriented in order to achieve the desired mass and moment of inertia characteristics.

Abstract: An air dam (100) for a snowmobile (10) diverts air away from a cavity beneath the front end (12) of the snowmobile (10). The air dam (100) extends forward and downward, and, thus, diverted air imparts a downwardly directed force on the air dam (100), thereby helping to maintain the skis (20a, 20b) of the snowmobile (10) in contact with the ground. A template (160) is used to form rivet holes (119) in the sidewalls (114, 118) of the air dam (100) as well as in the belly pan (18) of the snowmobile (10) to which the air dam (100) is attached.

Abstract: Improved jet propelled aquatic vessel (1) with a hull (60) profile which increase water entrainment to the jet pump intake orifice (14) and tends to stabilize the vessel. The vessel has a hull (60) with a lowered center section (13) wherein a concave water entrainment groove (15) is located. The vessel includes an operator control panel (43) and an operator support structure (10). The engine (20) is forwardly mounted in a closed engine compartment (21) while the air intake (29) for the engine (20) utilizes a combination of high and low points to avoid flooding of the engine compartment (21) should the vessel (1) capsize. To turn the vessel (1) a jet nozzle (12) is deflected by mechanical linkage (45). The vessel's steering wheel (11) is coordinated with jet nozzle (12) and mechanical linkage (45) to limit maximum deflection.