Removed the transmission cage from the gearbox cover yesterday. Lots of coagulating (?) oil in there, especially in unused corners (likely from the Nulon G70), but so far, no evidence of metal particles. I'll see what washes out when I clean it up. Last oil change, there were no fines on the magnet, but the change before that there were lots of very fine particles. It looks like the large flaky pieces are confined to the space between the clutch drum & the outside of the transmission cage. So it's likely one or both of those bearings.
The bearing in the transmission cage (photo in previous post) (part #20 in the transmission cage parts page - B063342 in the V7S & GU92201120 in the V7C & Breva) is a 6004/C3 grates a little - I'll try a little oil on it, but I've picked up a Koyo at the local bearing shop for $A12.10.
The bearing in the clutch cover on the clutch shaft (that #10 - GU92201225) is a SKF 6205 ($A16.50 from the friendly local bearing shop) has only a very mild notchyness to it & spins fine. Mine is also stuck on the shaft, as was that on the V7C when I had it apart a few years back.
It looks to me that the blocking ring/spacer is helping to keep it on the shaft. I shall take a puller to it later today.
The neighbouring (friendly & accomodating) auto mechanic in the complex has offered a bearing to case compound to help keep the bearing in the case.
So, now to clean the gearbox & check for particles, inspect the gear teeth, pull & replace those 2 bearings, and clean & polish the oil from the plate on the sprung clutch - flywheel already done - it should be ready to go back together. I think I had better take apart the old bearings to see if I can determine if those flakes actually came from them, rather than elsewhere. Talk about getting close & intimate with your motorcycle. And this is only the clutch.
