History

YOSHIMURA LEGEND Since 1954

Since “Yoshimura Motors” founded in Fukuoka, Japan in 1954, Pop Yoshimura started engine tuning in his own way. There was no information of engine tuning at that time, and he tuned many engines all by himself with his inspiration and knowledge in engineering. Soon later he became famous for tuning among American armies, and he started to be called “God Hand.” He challenged everything to overcome problems and improve tuning ability by himself and his continuous challenges made many victories in various races.

His years of experience made the name “Yoshimura” famous for the quality and the performance. Still more, the reputation has been created from various racing victories around the world. And they were the result of his unremitting effort.

The company Yoshimura has done an expansion abroad in 1973 and Yoshimura companies (Yoshimura Japan Co., Ltd. and Yoshimura Research & Development of America, inc.) have been both started to grow dealing with motorcycle performance products.

Pop became a man of legend with his achievement. And his son, Fujio, who inherited the spirit and the concept has been leading further growth of motor sports under the name of “Yoshimura”. The revolutionary design of Duplex exhaust system, MJN carburetor and Tri-Oval silencer were created from his idea and the technologies of the products have been achieving victories in races. His unflagging energy, the effort and the talent of creativity has been making Yoshimura name more firmly.

Yoshimura keeps challenging from its establishment 1954. Since then the sprits live in all the Yoshimura products and the quality and the performance are the proof of it.


TMR/TDMR

The Yoshimura Story – A Special History Series –


1954 Hideo Yoshimura (Pop Yoshimura) established “YOSHIMURA MOTORS” in Fukuoka.
1964 Champion in SUZUKA 18 hours endurance race.
1965 YOSHIMURA moved to Fussa, Tokyo.
The company was renamed to “YOSHIMURA COMPETITION MOTORS”.
Yoshimura started tuning of S600.
1971 The first prototype 4-1 exhaust system was introduced by Pop and tried on CB750 in Ontario 250.
1972 Yoshimura started to sell the first 4-1 exhaust system in the world.
1973 Yoshimura expanded the business to U.S.A.. and established “YOSHIMURA RACING”.
1974 “YOSHIMURA PARTS SHOP KATO” was established in Atsugi, Kanagawa.
1975 YOSHIMURA RACING” was changed to” YOSHIMURA R&D OF AMERICA”.
1976 “YOSHIMURA PARTS SHOP KATO” moved to Motomachi, Atsugi.
1978 “YOSHIMURA PARTS SHOP KATO” moved to Yamagiwa, Atsugi.
1979 “YOSHIMURA PARTS SHOP KATO” was changed to “YOSHIMURA PARTS OF JAPAN”.
1980 “YOSHIMURA PARTS OF JAPAN” moved to Aikawa, Aiko, Kanagawa.
1984 The company was renamed to Yoshimura Japan Co., Ltd. Yoshimura started to sell first new cyclone designed to overcome street noise regulation.
1986 Invention of Duplex Cyclone which was improved from cyclone exhaust system.
1987 Invention and manufacturing of Sanper exhaust system for single cylinder engine.
1989 Hideo Yoshimura became the chairman.
Fujio Yoshimura became the president.
1990 Manufacturing of Yoshimura MCL Road Star (Mazda Eunos Road Star).
Muffler material was changed to all stainless.
JMCA, Japan Motorcycle Association was founded.
1991 Muffler manufacturing factory completed.
1992 Fujio Yoshimura invented MJN carburetor.
Using titanium and carbon materials for exhaust system & muffler was started.
1993 Chassis dynamometer was set next to the company.
1995 Yoshimura Cyclone muffler with one year warranty.
Mass production of titanium full system was started.
Hideo Yoshimura passed away.
1996 Production of titanium cyclone and hand bent titan cyclone for Super 7 started.
1997 Previous one year warranty on Cyclone muffler extended for two years.
Suzuki GSX-R Racing kit parts development & sales has been started officially.
1998 Production of new designed cyclone “Tri-Oval cyclone” started.
Muffler repair service “Yoshimura’s care, Yoshimura warranty” started.
2000 Complete machine Yoshimura Hayabusa X-1 were released to the market.
(Base machine GSX1300R / 100 machines limited)
2001 Complete machine Katana 1135R were released to the market.
(Base machine GSX1100S / 5 machines limited)
Production of Catalyzed cyclone started.
2002 Complete machine Yoshimura Tornado S-1 were released to the market.
(Base machine GSX-R1000 / 50 machines limited)
Production of new designed cyclone “Mega Tri-Oval cyclone” started.
2003 Authorization of ISO9001.
Complete machine M450R released to the market. (Base machine DR-Z400 / Order made)
Production of new designed cyclone “Tri-Cone cyclone” started.
2004 50th Anniversary of the foundation.
New office building completed.
Complete machine Tornado III Zero-50 were released to the market.
(Base machine GSX-R1000 / 5 machines limited)
Production of EEC Approved Slip-On started.
Suzuki RMZ Racing kit parts development & sales has been started officially.
2006 Developed and started sales of exhaust system “Exhaust Shooter Package” (stepping motor & control unit).
Developed and started sales of Dual Stack Air Funnel.
2007 Developed and started sales of exhaust system “High Flow Magic” (catalytic converted system).
Developed and started sales of 4st Mini Cylinder Head Kit parts.
2008 Developed and started sales of new type silencer sleeve “Metal Magic”.
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