Disclosed herein is a common rail diesel fuel injection system (100) for a two wheeler, comprising at least a fuel tank (102) in flow communication with a high pressure pump (104). At least one injector (106) in flow communication with the high pressure pump (104) through a pipe (108), the injector (106) is mounted on the cylinder head (110) of the engine. A shield (112) encloses at least a part of the outlet of the high pressure pump (104), and at least one frame (114) of the two wheeler is in engagement with the shield (112). The frame (114) is adapted to enclose the pipe (108) originating from the outlet of the high pressure pump (104) and ending into the inlet of said injector (106). Figure.1
