I'm starting to notice the PO hadn't done maintenance for some time, so I think this is a long time build up. It was all a very fine dust, nothing solid.
I'm wondering if some of it may have been from me learning to shift on a K bike. I did have some hitches :embarass:
argent brick - Unfortunately they decided to pack up early about 10 minutes before I arrived. But I did get to see some K75s and talk to one owner that did an awesome restoration on his(told him about motobrick too).