Hello abhi,im facing problem in my pulsar 150 classic,as i had cleaned my fuel tank but all is in vain,very fine rust from tank get into carb and it get clogged,but ithink tank is in starting stage of rusting,as inside its looks all right not rusted yet(looks silverish metal).but i think it would be due to im dosnt fill my tank to brim,mostly it contain 2-2,5litre petrol

,what would be solution for that problem??is filling to brim will solve the issue??or and other solution available??except new tank??
Thank you,
Regards,