A bit more progress, removing various rubber bushes and mounts from the frame, the footpegs and beginning on the triple tree etc. Ran into some stuck fasteners on the helmet locks and the centre stand. Will have to try heat, having applied penetrating oil.
Also made some progress on the steering head, but got stuck on the upper bearing, which doesn’t seem to bear much relation to the images in the Haynes manual.
It makes it sound so easy:
Remove the stem locknut. Using an adjustable spanner wrench, remove the stem adjusting nut while supporting the steering head from the bottom. Lift off the race cover and upper bearing (see illustration).
Hah! Got as far as removing the race cover (I think), then found a rubbery washer thing over the bearings and can’t make them budge at all. There seems to be a separare silvery metal band which doesn’t seem to want to shift at all. I don’t want to break anything, so have taken a break to think (and ask the folks on the forum)