A friend of a friend of a friend dropped off an R90/6 for me to get the lights working. The story goes that this bike sat for over ten years and by the looks of it, maintained during storage. It looks pretty good for it's age.
The first thing I noticed was the center stand was finished, loose and broken. Next thing I noticed was that the front forks dive until the bottom. While doing a quick check, fuel lines are rotten and some of the rubber bits are rotten as well. A little closer look and it has a clunk in the rear end.
Let me categorize that further: In fifth gear, you can turn the rear wheel almost 60 degrees one direction or another and you get a very distinct clunk. Deep sounding as well. I'm pretty sure that it isn't just the u-joint and based on how much the u-joint can turn before the clunk, I'm thinking transmission.
I haven't done anything to the bike, it's not mine just to tear into it and find out what is going on. The flip side, I doubt the owner wants to spend any real money on it and I don't think the bike is safe to ride or even remotely reliable.
Where do I start? Tell him to take the bike back? If he says "go ahead" and look for the problems, it could hit serious money very fast. Offer to buy the bike and restore it giving him the rights of first refusal?