Cables, tyres & wheel bearings are high on my check list, however, opening up the brakes for a clean out may well be beneficial, the drums could well have a rust coating by now. That plus the carb clean I mentioned earlier will be enough
As for the motors, The Flash may be getting ready for a decoke (last opened up 2006) but it still runs OK so it is to be left alone.
The Infamous Bullet was last open about 5 years ago and performs well enough, that too will not be molested.
Spent an entertaining evening many years ago at BBC Shepeherds Bush watching Victor Meldrew aka Richard Wilson recording a One Foot In The Grave episode.
The semaphore direction indicator is amusing
