Not really sure what thread to put this on but since it`s a motor?? I ran across this XS650 motor listed on eBait. This is super neat. Doesn`t say if there`s any mods. Looks like there is no reserve. A good one to watch.
https://www.ebay.com/itm/1976-Yamaha-XS/183034633094?hash=item2a9db6db86:g:dHsAAOSw3q5aaIT0&vxp=mtr
https://www.ebay.com/itm/1976-Yamaha-XS/183034633094?hash=item2a9db6db86:g:dHsAAOSw3q5aaIT0&vxp=mtr