I've had my 2006 Ultra Classic for a couple of months now. It's my first Harley and a dream come true for me. I recently changed the fluids because I had no idea what was in it or how long it had been there. I've read on this and other forums that if you drain the primary and put in a quart you should be good to go. This is what I did because I found it impossable to see the bottom of the clutch basket. I even went out and bought a light thats an LED on the end of a stick so I could get a light down in there. The clutch basket is so close to the cover opening that I just don't see a way to be able to see the botom of the clutch. Is this a common problem on other models? If so how do you know if the fluid level is right? I like to be sure when I do things so this has bothered me.