Hey y'all - posted an intro in the Welcome area... I'm looking to buy a K100 (or 75) so expect a few stupid questions in this area as I check bikes out.
So looked at what turned out to be a K100LT (1990) today - image below.

Guy selling it had never ridden it - he bought it off another guy about 4 years ago and it's been sat in a garage. Cosmetically pretty good, all visible hoses and rubber in surprisingly good condition. The owner thought it was a "1300" but the compliance plate stated K100LT, so definitely not! It started, blew a bit of smoke, needed a bit of choke but it's winter here now and you'd expect that. Not registered and I didn't have gear so didn't take it on the road.
Issue was this: I noticed an oil leak coming from around the bolts holding the exhaust header pipes. Could this be from rings or something more cosmetic and easy to fix?
Advice welcome :yes