So I’ve noticed the last few rides I’ve taken that right where the speedo cable goes into the case that it’s leaking a bit of oil.  I haven’t added any oil so it isn’t over full, first few rides the bike never leaked and now it has leaked a bit of oil the last couple rides.  I’ve made sure that it’s tight as well, but not sure if there is a seal or o ring there that’s bad or if maybe the crankcase valve or hose is plugged ? Is there a way to check and see if and find out what’s going on

Guess I’ll have to check and see if the vents are clogged or something before I decide to change the o ring on the Speedo shaft