RichP said:
Anyone give me some useful tips on the best way to mount my tyres onto a Mavic rim to inflate,before I go insane.
Take a close link at that link that Shiggy posted.
The bit about putting the bead into the center channel is important for two reasons. First, it makes it easier to put the tire on the rim without having to resort to the use of tire levers. Or, if you do have to use them, you won't risk breaking them. Second, it gets the inflation of the tire started. When the tire is "seated" entirely in the center channel, the seal is better than when it's partially in the center channel and partially not. As the pressure increases, the bead will be forced up, out of the channel and against the rim. That, I think is the reason for the soapy water. It serves as a sort of lubricant to allow the bead to move freely out of the channel and across the rim strip.
Finally, that bit that says "pump energetically" can be very important. The idea is to inflate the tire enough to cause the bead to start to move before the air manages to leak out around the edges.