The forty-five Dr650r 1990 (l) (e2 E4 E15 E16 E17 E18 E21 E22 E24 E25 E34 E39 E Cylinder Head component parts are all listed in this schematic.
With all the components that make up the DR650R 1990 (L) (E2 E4 E15 E16 E17 E18 E21 E22 E24 E25 E34 E39 E CYLINDER HEAD assembly. The Guide,valve is the most frequently specified with four applications.