I know people that have done it but not had to myself.........yet.  Some of
the places we travel it may become necessary one day.  Almost did last month
in Denali National Park when we stopped to help some tourists with a flat
tire but a NP service truck came by and had an air compressor on board.
There is video online of people doing it,  The ones I have seen worked but I
would be more careful and do it away from others and not with people
standing by the tire.

Mark in AK
On Thu, Oct 29, 2009 at 9:44 AM, Tom Buese <tombuese@comcast.net> wrote:

>
> On Oct 29, 2009, at 11:38 AM, Mark Tuovinen wrote:
>
> ........................ It is
>>
>> possible to break the bead of the tire onsite and replace the valve stem
>> without removing the tire from the rim provided you have a new stem and
>> source of air or some starter fluid and a match.  Not for the faint of
>> heart
>> but can be done.
>>
>
> Whoa, I want to see that trick?
>
> YMMV,
>
> Mr. BZ-kinda like a blue flame contest?
>
>
>> Mark in AK
>>
>>
>>
>>