A motorcycle equipped with an engine (12) capable of being run on multiple different types of fuels, a vehicle body frame (11) supporting the engine with a cylinder section (43) of the engine extending upwards, an air intake device (46) and a fuel injector valve (94) that are disposed on the rear side of a cylinder head (44) of the cylinder section (43), and a main fuel tank (33) mounted on an upper portion of the vehicle body frame, characterized in that a fuel retaining section (143) is disposed below the main fuel tank (33) and rearwardly of the cylinder section (43) as viewed in side elevation.
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