Petrol related issues

[venicetable205]

Assalam-O-Alaikum!
Petrol filling k bad jab b next day start kro to start nahi huti petrol laa k dobara dalne k bad 1st self start ho jati hai.ab iski ye samjh nahi aa Rahi k petrol Kahan jata hai or na hi fuel average de Rahi hai. Or fuel filling k Duran petrol bahir ko ata hai back pressure Marti hai.
Mehran 06 model,

[nnabeel]

The fuel pipes near the fuel filler neck are choked. go to mechanic, take out all the pipes that goes from fuel filler into the fuel tank. replace all rubber pipes with new one as they tend to get hard by the passage of time. replace the fuel filler metal pipe as the pipe will be rusted also causing air pressure while filling.

this is a common mehran issue. picture of fuel filler metal pipe attached for reference only.