Gone are the days of the 400cc bikes here for a few years now and if you also count the fact that the xjr400 was neither imported officialy in Greece nor it was as popular as other, non officially imported, 400's (eg B4 or Honda CB400 Super Four or Yamaha xj400 diversion) then you can say that it is not a very easy task. But nothing is impossible... Anyway, if you can tell me what carbs are on the xjr400 then I can look around (edit: a quick search on the net resulted in BSR30 - correct?)
If you happen to know any other alternatives just let me know.
Much obliged!