Abstract: A removable fuel cap for use in a quick-fill refueling system for a motorcycle during a motorcycle race. The fuel cap comprises a movable plunger in a cylindrical windowed housing, the plunger being normally held in a closed position by a coil spring. The cylindrical housing and plunger assembly is inserted into the fuel tank opening and is held in place by a threaded retaining cap that screws onto the threaded gas cap flange. The retaining cap has a circular opening that allows access to the plunger. The fuel cap works in concert with commercially available quick-fill fuel containers. The quick-fill fuel cap is easily and quickly removed by unscrewing the retaining cap and removing the plunger assembly.