Abstract: A saddle riding vehicle includes: a body frame; a fuel tank; an upright internal combustion engine; a fuel injection device; and a high-pressure fuel pump. The high-pressure fuel pump is configured to be driven by one of an intake-side camshaft and an exhaust-side camshaft. The high-pressure fuel pump is mounted on an upper surface of a cylinder head cover in an attitude inclined rearward toward the other of the camshafts. The high-pressure fuel pump can thus be protected from disturbances from the sides, and the length of a high-pressure pipe for feeding fuel from the high-pressure fuel pump to the fuel injection device can be shortened. The vehicle protects the high-pressure fuel pump from disturbances from the sides, and prevents acceleration of vaporization of fuel by reducing heat which the high-pressure fuel pump receives from the cylinder block.

Abstract: An internal combustion engine is mounted on the saddle-riding vehicle. The engine includes: a cylinder head; a cylinder head cover; a fuel injection valve whose distal end is directed to a combustion chamber; a cam shaft; a fuel pump which feeds fuel due to an action of a cam which integrally rotates with the cam shaft; a fuel pump mounting member which is fixed to the cylinder head and on which the fuel pump is mounted; and a downstream side fuel pipe which feeds fuel from the fuel pump to the fuel injection valve and has flexibility. The above arrangement improves maintenance property by making a routing space of the fuel pipe compact by shortening the length of the fuel pipe while enhancing protection of the sides of the vehicle including the fuel pump.

Abstract: A saddle riding vehicle includes: a body frame; a fuel tank; an upright internal combustion engine; a fuel injection device; and a high-pressure fuel pump. The high-pressure fuel pump is configured to be driven by one of an intake-side camshaft and an exhaust-side camshaft. The high-pressure fuel pump is mounted on an upper surface of a cylinder head cover in an attitude inclined rearward toward the other of the camshafts. The high-pressure fuel pump can thus be protected from disturbances from the sides, and the length of a high-pressure pipe for feeding fuel from the high-pressure fuel pump to the fuel injection device can be shortened. The vehicle protects the high-pressure fuel pump from disturbances from the sides, and prevents acceleration of vaporization of fuel by reducing heat which the high-pressure fuel pump receives from the cylinder block.

Abstract: To manufacture fuel piping for connecting a fuel tank and a drive unit including an engine using a resin material at a low cost and to cause the fuel piping to suitably follow the movement of the fuel tank and the drive unit when the vehicle is being operated. A fuel piping includes connectors at both ends of a pipe member formed of resin material into a thin tubular shape for connecting between a fuel tank and a fuel injection apparatus for supplying fuel to an engine of a two-wheel vehicle or the like via the connectors. One or more bent portions are formed at the midsection of the pipe member of the fuel piping.

Abstract: To manufacture fuel piping for connecting a fuel tank and a drive unit including an engine using a resin material at a low cost and to cause the fuel piping to suitably follow the movement of the fuel tank and the drive unit when the vehicle is being operated. A fuel piping includes connectors at both ends of a pipe member formed of resin material into a thin tubular shape for connecting between a fuel tank and a fuel injection apparatus for supplying fuel to an engine of a two-wheel vehicle or the like via the connectors. One or more bent portions are formed at the midsection of the pipe member of the fuel piping.