1970

  • First Yamaha motorcycle mounting a 4-stroke engine "XS1" released
  • Yamaha Motor do Brasil Ltda. (YMDB) founded in Brazil

1971

  • Won snowmobile manufacturer title at Eagle River World Championship competition (U.S.)
  • Haraban Motor Co. founded in Indonesia in tie-up with Haraban Co. and local production of motorcycles begun in Indonesia

1972

  • Headquarters moved to present location in Iwata City
  • First win in Motocross World GP at Round 10, Swedish GP (250cc class)
  • First win in Motocross WGP Round 11, Luxembourg GP (500cc class)

1973

  • Yamaha Motor Canada Limited (YMCA) founded in Canada
  • Signed joint venture agreement with Brunswick Co. (U.S.) and Brunswick invests in Sanshin Industries
  • Won first manufacturer and rider titles in 250cc class of the Motocross World GP
  • Yamaha wins 1st All Japan Trial Championship
  • First Yamaha portable generator model "ET1250" released
  • First Yamaha racing kart model "RC100" released

1974

  • Hisao Koike appointed second YMC president
  • Won manufacturer titles in all classes of road race World GP, 125cc, 250cc, 350cc, and 500cc
  • PT. Yamaha Indonesia Motor Manufacturing (YIMM) founded in Indonesia as motorcycle parts maker
  • Manufacture and sales of FRP pools begun
  • Membership type comprehensive recreation facility "Tsumagoi" opened in Kakegawa, Shizuoka

1975

  • "C7 Campaign" launched with aim of reducing cost by 7%
  • Sportsland SUGO opened in Shibata-gun, Miyagi Pref.
  • OMDO (Overseas Market Development Operations) liaison office opened in Nigeria
  • First Yamaha golf car model "YG292" released
  • Wing of Yamaha wins 1st Single-handed Transpacific Yacht Race

1976

  • First Yamaha industrial robot model, an "arc welding robot" release
  • First Yamaha marine diesel "MD35" released

1977

  • YMC-related divisions of Yamaha International Corporation separated to found Yamaha Motor Corporation, U.S.A.
  • Yamaha "DT100E" and "XS650E" are top models in the industry to clear the U.S. 1978 emissions regulation
  • The "soft bike" model "Passol" released
  • Captures manufacturer and rider titles for the first time in 500cc class of the Motocross World GP

1978

  • R&D Minnesota opened in U.S. as Yamaha motor's first overseas R&D center
  • First Yamaha land car model "G1-AD" released
  • First Yamaha snow-thrower model "YT665" released

1979

  • Industrial robot "CAME" developed an introduced on YMC production lines
  • Yamaha's first All Terrain Vehicle (ATV) model "YT125" released in the USA
  • XT500 wins 1st Paris-Dakar Rally
  • Energy saving 4-stroke engine system Yamaha Induction Control System (YICS) developed
  • Sino-Japanese friendship "Guangzhou Yamaha Exhibition" held (China)