To Dusky, thanks for the detailed reply. You have a point in buying a surplus carv, the question of how can i be sure if its a good carb, that I do not know.
I have no budget for EFI or would stay away from an engine swap as I might be getting a defective engine - and still will be paying some cash for the swap.
I will try again to have it repaired. So i need advise on a good shop in Kamuning that can fix my carb.