Hi all,

I seem to be getting a rather strong vacuum in the tank after a long run, making the fuel cap hard to open and a large amount of air floods in when it finally does open.

Assuming that the F4i (F1 in the UK) has a tank breather, is the tank breather in the fuel cap or elsewhere on the tank? Figure I should check it for blockages.


Thanks in advance.

 

Anybody?

 

There is a hose that connects the tank to an outlet near the bottom of your left lower fairing. Probably locked as you suspect

 

hahaha