I managed to have a lie-in, and dragged myself out of bed after 9am for the first time in as long as I can remember.
I went out into the garage and replaced the oil lines on the YSR. Of course, this necessitates taking off the clutch cover, which means draining the oil. Now everything's done, and the oil lines are bled through, we'll see if this fixes the oil leaks I was seeing. That's the great thing about 2 stroke oil, it's a different colour from the engine oil.
In the afternoon I went to the airfield and snagged the fuel cap out of the tank with the first pass with my "magnet on a stick" tool. It took me longer to ride there (on the DRZ) than it did to fix it. As it was really windy, I put the spare fuel into the tank and rode home.
In the evening we started watching "Spaced", something with Simon Pegg and Nick Frost that I've never seen that I found on Hulu.