@Imran,
Do get in contact with Azhar as now a days he is working on one FZR-400..he just bought its engine from Saleem a.k.a saliya (KHI). I asked him abt carbs he said he can arrange one if needed...leme check the exact tyre size which i had cuz right now it at Azhar's shop i am also working on the my project bike Suzuki-1000GS..so i visit azhar almost daily...total restoration of FZR-400 including new engine, paint job electric work etc etc cost arnd Rs.60,000/- getting a custom paid bike in good running condition in Rs.160,000/- is nothing i think....