Suzuki GD 110s vacuum in fuel tank

[pwuser155749116326]

Can anyone advise me that my Suzuki GD 110s fuel tank is creating a vacuum. In cold weather it stops and when I open the tank cap it starts again.

I have cleaned up the fuel cap aswell which was rusty. This is happening only in night when its very cold in Rawalpindi.

[nnabeel]

There is a minute hole in fuel tank caps beneath the rubber seals. get the fuel caps washed properly with petrol, remove the rubber seals and inspect. your problem witll be solved.

this vacuum will give you more trouble during rainy days also.

i had this issue with my Sprinter 110. i got it resolved by the way as mentioned.