Man she's getting too comfortable in this position.
Let me cut to the chase. No joy on the clutch screws being too long. The Mikes / XS650 Direct screws are 40mm long.
So the inner hub is rub mark free. Unfortunately this isn't the source of my 'cheap 70's metal-flake paint job' to use 5twins words.
I compared all areas that had scrape marks to pictures taken in June when I was last in there and there are no changes.
June pic:
July pic:
June pic:
July pic:
Could post more pics but kinda redundant.
2M as excited as I was about polishing something I decided against polishing these spots for three reasons.
1) I would have to start with an abrasive such as a fine grit paper or roloc discs and was afraid that would remove too much material that could compromise the ability to notice subtle changes in the future.
2) I have a pretty extensive photographic record of everything that can be referenced.
3) If word got out that I was actually polishing the 'INSIDE' of my cases I may get a visit by these guys.
So, no luck with this boys. I know the next logical sources are the cam chain guide/tensioner but there's only 550 miles on these brand new ones, so unless I really messed something up somehow I can't see that they would disintegrate this quickly. Also if that were so there would be a lot of noise from the cam chain rubbing on aluminum, and that isn't the case. (pardon)
Obviously I have no desire to go through all the work of tearing this down again, but would do so readily if there was any bad noises indicating that there is something really wrong.
I haven't done anything to source the cause of these flakes, so they may very well be back in the future.
I don't know what else to do or look for so I think I'll button her up and check the oil again in another 100 miles or so unless you guys have any other suggestions as to something else to look for.
This course of action does cause me some concern as I don't want to do any irreparable damage, but it was running great with no unusual noises.
EDIT: All the wheel bearing grease that was packed in the needle bearing has been washed away and there was plenty of oil throughout the entire clutch assembly.