Off season, hmmm....
On the 919 I have visions of completing the black powercoating. Tear down the front end, black out the forks and triple trees, as well as the side frame brackets. If I really get rolling I might lightly polish the swing arm and outer edge of the wheels. Needs an oil change and overall maintenance as well.
On the 599 I need to replace the speedo housing, have had a new one in the garage ever since we bought the bike. Also need to modify the kickstand so it sits more solidly since the bike's been lowered. Have some cool Hornet decals for the rear cowling as well.
FJR and Vulcan 500 need nothing other than a good bath and some gas stabilizer before they go under cover.
The 350 Four is the big project this winter, want to take it all apart, clean and polish everything, work on the carbs, have the gas tank cleaned out, and make it run!
The BSA will probably continue to sit sadly under an old blanket leaking oil on the floor.
Now, how much of the above I'll actually get done is the big question. I can guarantee that I'll meet my goals with the FJR, Vulcan and BSA though!