add a vent and a flame arrestor and have another for show use or at sea
(where I don't want to risk any water getting in my fuel in the event of a
few waves).
Does anyone recognise this type of cap and know a source of them, failing
that does anyone know of any cap which might fit - the outside diameter of
the threaded filler of the fuel tank is 2", I've got no idea what the thread
is.
formatting link
Thanks
John