Hmmm.....cant find a piccy and the diagram from the WSM I have isnt clear either.
Ahhh...just checked the Haynes manual - they are just like punched marks on the edge of the flywheel, it shows the first of the two marks together being TDC, next is firing point at idle then after a space a third 'dot' for firing point at full advance.
From memory my engine must of been apart at some time as I believe there is white paint on one of the marks.
Good luck - Frank
NB - here is the best Website for mtce info and on this page - belt adjustment:
http://www.buschandbusch.com/ducatis...lttension.html