handsomejackuk wrote:my fuel cap is a lockable item with no tube... it has always been o n there and causes no problem... only thing i have noticed though is ... that there is a squealing noise sometimes in shed when i put bike away.. if i loosen the fuel cap it goes so there must be a vacuum in there... do i need a vent in this locking cap ???
my gpz does the same,more so on a hot day and opening the filler either allows more air in or out not sure which and i suppose that noise will be there when riding but your not going to hear it over the sound of everything else.
never noticed it on the mz but that has a breather dia of about 3mm now i have drilled the pipe holder out