Dear inmates, while cleaning my 2012 1200 GS twin cam this weekend, I noticed oil on the bash plate. I removed the bash plate and could see oil apparently coming from the flange between the engine and the gearbox, mostly on the left side in the area of the starter motor. Could this be a leaking main bearing oil seal or gearbox input shaft sealing meaning that the bike will have to be split in 2 to get it fixed ? Have any of you experienced this on a 2012 twin cam? Mileage is 33400 km.