RagnarLothbrok

Hi everyone! I’m new here and am looking for some help. I’ve got a Yamaha xvs 1100 dragstar and appear to have a tiny oil leak from the rear cylinder that appears to be about the head gasket. How hard is this to strip down and repair and is it possible to repair it myself without needing to have the head skimmed? Or is this possibly a ‘vibration’ issue where the bolts just need re torqued? Please help