Hi Mike,
When are we going to see you in this part of the world again.
As for the stoppers, if they are listed for use with gasoline they are good for kerosine also, but if they are for glow fuel kerosine will destroy them quickly. I have seen black ones in both types, so you probably need to find one with the label.
Steven
ORIGINAL: I-NAV
Are the black stoppers safe for Kero? They look like rubber, but not sure.
Mike