Oil Cap Weaping 765rs

Hi, just had 765RS serviced other week and when out on a long ride noticed oil weaping out the oil cap.
Tried tightening it but didn’t make any difference.
Can’t see anything at all wrong with the O ring, just wondered if anyone else had same issue.

can’t get to a shop over the weekend for a replacement. But because I can see anything wrong with the current I was wondering if it was maybe to do with how tight it should be ?

thanks

 

Not enough to thinking about topping it up, an hours ride and maybe a wipe with a tissue
Oil level seems ok, I’ve had it out a couple of hours and didn’t change.

if I could of seen something on the o ring it would of made sense

 

the o ring is a tight fit on the cap

the counter bore it sits in is a lot larger as I actually thought it should of been bigger