Royal Enfield — rust inside the fuel tank

Address:

Thrissur, Kerala

I have purchased enfield standard 350 modell in 2016. Now missing is coming and while checking it has seen that there is rust inside the fuel tank. It is fresh and no problem can be seen from outside. But fuel is coming as brown color with rust. So it has been told me to change the fuel tank as well as carborator. Why you provide this poor quality iron to this. I was a lover of royal enfield. But these type of problems makes me to think for the alternatives. I have put my bullet without a move for two weeks now. Any help from your side appreciable.