There is a nipple on the underside of the final drive unit on my '05. It has been slowly discharging oil (onto the back tire when it's parked on the sidestand). What is this nipple for? Is is supposed to have a cap?
Well same thing happened to me last winter.So far replys are right on either to full or the inner seals have gone bad.Mine was not over filled so it had to be the seals and out of warranty.A fellow member offered to sell me his low mile final drive after he had triked his wing.That is what I done and it is doing a fine job.You can do this for less that having a final drive repaired.TDR
My 05 did the exact same thing. Had repaired under warranty. Unless I am mistaken, the original warranty should be for 4 years. Do a search for "Final Drive" and you will find volumes of info. I have learned more from this board than any mechanic or dealer will ever teach you about your bike. It took the shop about 1 hour to replace the drive shaft seals, clean everything up and refill with new fluid. I can recomend a good dealer / shop if you are anywhere near East Tennessee.