On Sunday afternoon I removed the ride height adjuster, loosened everything off and put it back to together with plenty of waxoil as advised by Jools. I adjusted it for about 12mm clearance between the tyre and the ground ( the tyre is nearly worn out so I expect the gap to be about 8mm with a new tyre). I can see that there might be stablilty problems with the side stand if I lengthen the rod much more.
Then the rain came on so I haven't been able to try it out yet
