My son in law was complaining that the primary of his NightTrain was getting very noisy. Well, today, after eating a good Fathers Day dinner, we put it up on my jack to take a look. This bike was just serviced at the dealer and my son in law has only put 300 miles on it. This is all that drained out! This is what I saw when I pulled the cover. All that is left of the chain tensioner. It appears that the tech who did the service drained the primary, put the plug back in, and never refilled it with oil. I WILL be getting to the bottom of this tomorrow.