Abstract: A scooter-type vehicle can freely set a capacity of a fuel filter without being restricted by swing of a unit-swing type engine. A fuel supply device includes a fuel tank and a fuel supply passage for supplying fuel to an engine. A pump-anterior filter for purifying the fuel in the fuel tank, a fuel pump, a fuel filter disposed on the downstream side of the fuel pump, and an injector for injecting fuel are arranged on the fuel supply passage in this order. The fuel filter is disposed between the upper surface of the fuel tank and the step floor. The size of the fuel filter can freely be set without being restricted by swing of the engine located rearward of the fuel tank.

Abstract: A scooter-type vehicle can freely set a capacity of a fuel filter without being restricted by swing of a unit-swing type engine. A cross pipe is spanned between a pair of left and right lower frames and a lower end of a down frame is connected to a central portion of the cross pipe. A fuel filter is disposed so that its lower end is higher by distance than the lower end of cross pipe. The fuel filter is disposed between the down frame and the fuel tank. Since the fuel filter is disposed in front of the fuel tank, it is not restricted by the swing of an engine located rearward of the fuel tank. Therefore, a capacity of the fuel filter can freely be set.

Abstract: A quick connector includes a female member and a male member. The male member includes a retaining member to connect the male member and the female member. The retaining member includes an operated portion provided at an extending end of the extending portion and a claw portion. The female member includes a window portion with which the claw portion of the retaining member comes into engagement. The engagement is releasable by elastically deforming the operated portion of the retaining member toward the axis line of the male member. A release tool includes at least one operating portion which is configured to come into contact with the at least one operated portion of the retaining member to press the at least one operated portion toward the axis line of the male member so as to release connection between the male member and the female member.