Originally Posted by TonyGibbons
However, I don't like the idea of the tanks just venting to atmosphere. Maybe this is where my understanding is weak, but wouldn't that cause fuel evaporation loss over time, and/or a little bit of dirty air getting into the tanks?
IMO, if you are concerned about gas evaporation out of the tank vents and loss of fuel. - Your bike would be stored for so long, you should have drained the gas out, b/c it won't be any good when you are ready to use it anyways.
It's not like at the end of the week of your bike sitting, your tanks will be empty.
That Gas caps have this rubber trap door thing in it to. Rip the Taps off (CAPecotomy- look that one up too) so you don't get a Vapor lock in that too.
Do it all, or do nothing.