Cheers man.
It was pain to get at as I had to remove the rear fairing, the rear wheel and drop the pin out of the top of the shock. As the linkage and shock dropped down, it came forward a bit which gave me access to the adjuster on top. Even with all that, it was tricky to twist the adjuster because with every click, the next one got stiffer to pull round. I have a couple of scuffed knuckles to tell the tale!
Sounds like your bike has had a rough life in the past, looks like you found it just in time. Hopefully all the gunge and nasty will wipe off without too much drama, I hate stuff like that. With your shock settings, you may find there's plenty of adjustment left on the pre-load altough to be fair, I don't know much about the '24 suspension setup. Worse case scenario, it may need to be replaced but with that, most shock companies will give you an option for a different colour spring ready powder coated..
Be sure to post some pix when you get chance.
