floating

last MOT in April I got an advisory of too much slack in the floating disc buttons on my 06 Big T....Ive rode the rest of the year with no probs, breaks are superb as usual, Ive been told you can tighten the buttons as discs are Ok, so how do I do it? Can you buy new buttons? I really don't...

Hi, I want to release my disc to be floating again. I gave them a wee wallop with a hammer yesterday, using a thick piece of cloth to prevent any damage, and it didnt seem to dislodge the bobbin at all. So I presume it may also need some form of penetrating fluid used along with a proper...