Since this topic came up. I thought I would do my clutch cable, the throttle cable is very slick still, the bike only has 3500 miles on it. I have one of those clamp on devices that allow injection of a lube in an aerosol can, so I thought I would be using it. After a closer look at the cable, I thought perhaps if I were to turn the front wheel full right, rotate the cable adjustment so that the slot cut in it for the cable, is facing upwards. This places the cable end higher then the rest of the cable, and a trough forms inside the adjuster body that can hold oil (only a couple drops) Pull the lever, drop a couple drops of oil in the trough, (I used Breakfree) and work the lever a few times. Repeat 2 or 3 times. Reset the adjuster (1/4 turn in my case) and ride. I went for a 30 mile ride after doing this. When I got off the bike I had some oil film on the clutch casing, so I know the oil made it all the way down, and it didn't take that much. The cost was a couple drops of oil I already had in my garage. The 6R is probably the easiest clutch cable I have ever lubed. While I was looking at the front of the lever, I could see where dirt could get into the cable, there is nothing to prevent crap from getting in there while riding, bugs and dust are likey to get in and gum things up, so I took a piece of rubber hose, it had a wall thickness of about 4mm, I cut a piece .15" long enough to fill the void and cover the bar cable. I used 2 of these, one for each side of the lever. The only time crude can get into the cable now, is when your working the lever, the cable becomes exposed for the duration of the gear change.