Abstract: A side cover structure used in a motorcycle having a motorcycle frame, a fuel tank supported on the motorcycle frame, a driver's seat disposed on the motorcycle frame, and an engine supported on the motorcycle frame below the fuel tank and the driver's seat. The side cover structure includes a side cover member attached laterally to the motorcycle frame below the fuel tank and the driver's seat, the side cover member having at least one opening for permitting air to flow therethrough. With this arrangement, the space defined by the side cover member is effectively ventilated to protect a battery, a reservoir tank for a cooling liquid, and other motorcycle elements or components which may be disposed in the space from being affected by the heat produced by the engine. The side cover member allows the battery and the reservoir tank to be visually checked for liquid levels through the opening.

Abstract: Radiator for a two-wheeled motor vehicle with a lateral V-type crankshaft straddle type engine. The radiator is attached to the front section of the down tubes and comprises an upper section between an upper tank connected to coolant recovery piping and a middle tank, and a pair of lower sections between the middle tank and a pair of lower tanks supplying coolant piping at both sides. One of the lower tanks is lower than the other, with a connecting pipe between them inclined so as to equalize the coolant flow speed.

Abstract: A motorcycle having a radiator mounted forwardly of the fuel tank and above the engine. The motorcycle further includes a cowling extending from forwardly of the radiator to either side of the motorcycle. A radiator baffle plate is positioned between the radiator and the fuel tank. This plate includes a downwardly extending panel which is positioned between the radiator and the fuel tank and which further extends rearwardly on either side of the motorcycle to positions to either side of and adjacent the forward portion of the fuel tank. Passageways are created between the cowling and the downwardly extending panel to direct the air heated by the radiator downwardly and to the side of the motorcycle for discharge without impinging upon the rider.