I have a collection of rubber stoppers "left over" from when I taught
chemistry.  The smallest: 000 and 00 are often useful for plugging things
like the outlet from a fuel tank temporarily.  I believe that these are
available at Lowes and certainly at a good hardware store.  A larger one
(#8?) can be used to plug the filler tube grommet on a fuel tank while it
is being raised into position.
  Hoses can be clamped without much stress by using small needle-nosed vise
grips with pieces of hose on the jaws.

Larry A.
  did you actually find 11 mm fuel hose at your FLAPS?

On Fri, Oct 11, 2013 at 6:54 PM, JRodgers <jrodgers113@gmail.com> wrote:

> Now I have the hose - next question.
>
> How would one go about replacing that hose with fuel in the tank??
>
> Can't clamp the hose - it has to come off. Figure there must be a
> procedure to get this change done and not make a complete firebomb
> waiting to be lit!
>
> Thanks,
>
> John
>