I have an XS650 frame, tank and seat I am looking to sell for $80. The frame has no papers and no serial #. I bought it from fellow board member Loco Leon. A local mechanic told me it's possible to create a new serial or may be able to get a new serial as a custom frame. Frame is good, tank has a small dent which I'm sure can be repaired easily, seat has small rip on side and again easily repairable. $80 takes it all.
Cheers
Cheers