Dear all,
Finally I managed to delve into my 130.000 km '85 K75S' final drive and drive shaft business. The situation seems to be rather bad, or is it? To my untrained eyes it looks like, the splines are pretty much shot, especially on the drive shaft side, please see the shed load of images, I have attached. Is this catastrophe waiting to happen or the doom is not knocking on the door as yet? Also upon dis-assembly a large-ish quantity of rust coloured light oily fluid came out of the shaft housing, you can see that on the first pictures... What the hell is that? Is it gear oil mixed with water and rust from the shaft? There was this fluid and a lot of brown coloured mud like crap, that was hard to clean off, I did at the end, and lubed the splines very thoroughly with LM47 Liqui Moly (we don't have any Honda Moly 60 around here, and this is the stuff, Haynes calls for), but what is this? I would guess it is possibly water ingress through some torn rubber, but where is the oil coming from? Leaking seal on the gear shaft? I could not go in any deeper into the bike this time around, but what should I check next time? Also if there is water present, especially in largish quantities, would that wash of the grease quickly?
Thank you!
Gabriel