screw a self tapping screw into each side of the seal...
grap both screws with pliers and wiggle it out...
can help to do it with the motor hot so the alloy case
has exspanded slightly....
just lay the bike over so yer don't have to drain the oil
even thow they are a dry sump motor there is quite a bit
of oil in the sump...

just measure the OD & ID of the seal.. go buy one....
bearing / engineering type places...

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Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...