Yamaha 250 and 350 Twins 1970 – 1979
Yamaha models covered by this manual:
Yamaha YDS7. 247cc. UK December 1970 to June 1973
Yamaha RD250. 247cc. UK and US July 1973 to May 1975
Yamaha RD250 DX. 247cc. UK January 1976 to 1979
Yamaha YR5. 347cc UK December 1970 to July 1973
Yamaha RD350. 347cc. UK and US July 1973 to May 1975
Yamaha RD350 B. 347cc. UK May 1975 to September 1976