Bike has sat on the centerstand since November in my unheated garage. Tonight, I was getting the wheels off in preparation for a tire change tomorrow. When I slipped the wheel off the pumpkin, it was accompanied by about 5 millilitres of black gear oil (black because of the grease used for the splines). I wiped it off the floor and wheel with paper towels and no significant amount continued running- no further drips after 2 hours.
There is no oil on the outside of the pumpkin or on the floor under it (prior to removing the wheel) No oil or greasy dirt on the underside of the swingarm or at the weep hole. There has been no oil on the wheel or anywhere else.
This doesn't seem to be typical of a final drive leak. Ignore it and see if it goes away?
Keep an eye on it and take action if the leak actually makes it outside the wheel hub?
I have some major rear-end service to do including clean/lube drive splines, u-joint, relay arm, rear drive lube, and getting the shock refurbished. Anything in particular to check in terms of seals while I have the drive shaft off? (Thinking #5 and #24 - don't even know how accessible they are.)
![Image](https://i.postimg.cc/4Nkcwtqv/Screenshot-2024-04-25-214325.png)
https://www.partzilla.com/catalog/yamah ... rive-shaft
Edit: Bike has 160,000 km (100,000 miles).