Don't think he meant that but the O-ring which is behind the startermotor, located inbetween the V.
Think that Pyn had a picture on that one somewhere in his thread. Will try and find it...
'05 950 Adv S - 71000km
'14 Beta RR 350 - 0h
'14 Beta RR 350 - 2h (Stolen)
'09 250 EXC-F SixDays - 184h (Stolen)
'98 XL600V Transalp - 86000km - SOLD