Got to the bottom of the problem with the help from other threads, some on this forum, and with some on OzSTOC. The offending part was the speed sensor.
Part ordered and now fitted, tested on centre stand, working okay.
General opinion was to remove RHS fairing, so whilst doing that removed LHS fairing, cowls and other sundries, and took opportunity to give the bike a good scrub, was tempted to put some of the small pieces in the dish washer, but had a better idea ...... put 'em in the shower. I sat and scrubbed 'em until the hot water started to run out.
If anyone else thinks this is an option for them, my tip is to do it whist wife / girlfriend / partner is out and not likely to come home - like happened to me.
The site of me sitting naked in the shower, surrounded by Honda bits is probably not a pretty sight, and something the better half didn't want to see, and her comment (something along the lines of) she didn't know that I loved the Honda THAT much.
Now to get all the fairing bits and pieces back on, hopefully in the right order, but that is easier said than done. Bike is re-assembled, ready for a ride - almost. Except for part 16 (it looks important), but it's looking lonely sitting by itself on the garage floor.
Back down the garage tomorrow night. Just hope that I don't need to remove the main RHS fairing; may be just lower fairing.
