what does this mean?! rode a couple of hundred miles on the 'new' r80 st this weekend (including motorway) and noticed some oil spill on the final drive this morning....
Had a look at the final drive issue yesterday - it had in excess of 500ml oil in the bevel! Now re-filled with the correct amount of 350ml. The level screw at the back of the bevel turns but does not unscrew, or tighten properly - no leak tho'
While I was at it I drained the shaft as well - oil looked a bit milky, and now replaced with 150ml new GL-5 as well.
Check that the breather through the speedo bolt on the gearbox isn't blocked.
If it is, it can lead to oil being passed from the drive shaft into the bevel drive.