This Cam Chain/tensioner diagram displays the required parts for the Xrv750 Africa Twin 1990 (l) Italy Cam Chain/tensioner.
The most reasonably priced component used on the Xrv750 Africa Twin 1990 (l) Italy Cam Chain/tensioner is the Washer Seal, 6mm.
Of all the components used in this assembly the Chain,cam (borg W is the most expensive.