Inside the headlight bucket of my V7II there were two small black O-rings (shown as part #18 (883417) on page 33 of the V7II Stone ABS 750 USA-CND 2016 Spare Parts Catalog). Anyone know the purpose of those O-rings (perhaps just to temporarily hold the headlight during assembly?). Also, on page 29 is an exploded view of the Air Box listing a part #5 "filter blow-by (AP8104525)". Anyone know what this is? Apparently this is part of the cam head oil-mist/return system but is the part some type of foam rubber pad?