classic motorcycle forum

Hope you can help me.  I need to replace the handlebar P clamp bushes from the top yoke on my 68 T100.  The previous owner had a go and left in the outer metal sleeve.  Its in tight and not interested in being pressed out.  Any ideas?  Can it be extracted from above and/or below or is there only one direction for install and removal?  If I have to remove the top yoke can I do so without disturbing the front forks and head race bearings?

Many thanks in anticipation of your advice.