No worries, I'll run it by the Dealer next time I'm in for a few accessories.
As far as I'm aware these motor's start life with a 'Thinner' running in oil that's why the first service timing is fairly crucial to get the proper stuff in there.
I walked away from a used XT660R a while back although it was low milage there was no record of servicing & smelt burny hot after a run, the radiator scoop was also damaged, the guy said a bird flew into it, that maybe but what about the tufts of grass still in the bar ends & foot pegs?. Hummm.