I was wondering the same thing, if it was just time for the bearings to fail. The moped sat (with the previous owner) for approximately 7 years with no fluids in it. I, of course, checked it before running. I'm currently running ATF Type F in there right now. I'm not 100% sure if that is correct.
I've seen this list from Vintage Mopeds. Thanks so much for providing the link. I have a buddy who works in sourcing bearing so, hopefully it is relatively easy to find them all. I've done pretty much everything to this bike except for the breaks and splitting the bottom half. I'm a little apprehensive about it to be honest...lol. I've read up on it some. Is heating the case to over 200 degrees paramount? Or is that just to facilitate removal of pressed bearing, etc.?
And yes, definitely going to start high on the jetting and work my way down with ample amount of plug chops. Thanks for the input!!! I'm going to pull the cylinder this week and check out the top end. If she looks okay, I'll start tearing into the lower end. Do you think my gears are okay?