New to me.
 

Have just got another xt600. Dead cheap, so will do for spares. On closer inspection there are a few oddities.
It is a 3TB, both frame and engine #s say so. I checked xt600.de for specs. They say it is 595 cc. Barrel on bike says 608 cc????? :confused1: Barrel and head are cast with 1JK00. I thought it was an early 3TB, but am now confused. Could do with some info, thanks, Neil