Originally Posted by scarysharkface
I don't see a leak, only some sticky gasket goo from possible previous work, or perhaps from initial assembly...
Actually that is a pretty common front seal leak on the 12GS series, and several have had it on the 1150 as well.
It is a slow leak combined with clutch dust.
PS Mine did the same, as well as a rear seal that required a new clutch disc and clutch slave cylinder.