1979 Yamaha RS100 Project
Running bike
Listed on ebay 
 
https://www.ebay.co.uk/itm/197024410351?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=MKq1brtHQ0O&sssrc=2047675&ssuid=kdh2yznaqx6&widget_ver=artemis&media=COPY
 
There is a video of the bike running
Link to the video of the bike running is Yamahars100 to the right