use plenty of dish soap all over the rim bead area, and tire bead.
I mounded a big block on the back of my 1100gs, using only little 6 inch tusk tire irons.
It wasnt easy, but certainly not unpossible.
your technique has to be good, make sure the opposite side from where you are stretching is as far into the rim as it will go, thats the only way.
Keep in mind that O.J. Simpson was not indicted either.
Charter member: T.O. club.