to deliver air to the intake port of the engine a parallel linkage moveably supports the moveable funnel relative to the fixed funnel an air cleaner box in which the fixed funnel and the moveable funnel are disposed includes a protrusion at a portion that covers the moveable funnel and that prevents the occurrence of contact with the moveable funnel application_number US 62369807 A description fig1 is a side view of an overall structure of a motorcycle having certain features aspects and advantages of the present invention fig2 to fig1 illustrate the structure of funnels of an engine air intake system of the motorcycle of fig1 the motorcycle of fig1 to fig1 is one example of a vehicle of the present invention certain features aspects and advantages of the present invention may be employed on other vehicles as well in the figures the arrow fwd indicates a forward direction of the motorcycle in the direction that it runs the structure of a preferred embodiment of the motorcycle is described with reference to fig1 to fig1 in the structure of the motorcycle shown in fig1 and fig2 a front end portion of a main frame 2 is connected to a head pipe 1 the main frame 2 as shown in fig3.