all valid questions. my suspicion is the insert is for a wheel stand rather than any kind of structural support. the insert is about 3-4" in length, so it does not protrude through the center of the axle. going to try tapping it out, if that doesnt work the torch comes out. if that still doesnt work, then i'll need to find a way to lift the rear without a center stand then remove/rework or replace.
supposedly PO took the bike to a reputable shop in the bay area, however it fell victim to the pandemic so unfortunately I have no way of knowing service history.
Looking into getting all of the parts for the rear, I'm having difficulty locating the spring washer that goes between the axle nut and the cush hub, Honda PN 90501-MN8-000. (item 24 in the fiche https://www.hondapartshouse.com/oemparts/a/hon/506ca734f870023420a3fbf0/rear-wheel ), anyone have any leads?
I am indeed considering buying a full swingarm with the rear assembly as it may be faster/cheaper than trying to piece meal this thing back together. I need to get back on this bike asap, my commute suffers greatly without it and now i get sad when Im sitting in traffic while watching fellow riders zip on by..if i didnt have a bad history of letting projects sit for years I'd probably pick up an '01 yellow 800 in the meantime 🏍️