Vespatronic installation

Have the bike finished exept for the ignition.  The vespatronic i ordered for a 74 primavera 125 doesnt seem to fit.   The stator plate securing screws hit the new flwheel when i trry to press it on. Is there a different way of securing the stator plate that i am unaware of? And does the stator plate have to be in any certain position since the timing is supposed to be self adjusting? please help if you have ever put one on.  Did SIP send me the wrong system for this bike is m onl thought at this point?




seems you have a diff. cone.


please check the dias


be sure the flywheel is a 20mm type and you need the 19 type