
Yamaha Xs650f | Cycle World | MARCH 1979
Mar 1, 1979 · reaches back to 1955 and the Hosk sohc 500 Twin, which in its day was the only Japanese motorcycle capable of running with the fast British machines of the period. Along its …
Sunday Salon: The Yamaha XS650 – Originality Is Overrated
Aug 21, 2022 · A Japanese firm named Hosk appeared to get divine inspiration after an intense study of the Horex bikes. They developed and built a 500cc twin that was essentially the only …
Horex Imperator Twins - Sheldon's EMU
Horex Imperator 500 First displayed at a major German trade fair in late Summer of 1952, the Horex 500cc SOHC Imperator had been plagued with problems, and as a result development …
Yamaha XS 650 - Wikipedia
The Yamaha XS650 is a mid-size [2] motorcycle that was made by the Yamaha Motor Company. The standard model was introduced in October 1969, and produced until 1979. The "Special" …
some xs history,part #1 - Yamaha XS650 Forum
May 11, 2010 · It's worth noting that Hosk made more than one verticle twin motorcycle. If you do a little search work you'll find that the Horex Imperator, made in both 400 and 500 cc. …
BUILDING A BETTER TWIN - biker.net
Horex, in Germany, designed a 500cc SOHC vertical twin that was thoroughly modern in concept and execution. The impecunious and enthusiastic engineer of Hosk in Japan made an Oriental …
Yamaha XS650 by Makarne Custom Motorcycles - Silodrome
May 16, 2015 · The Yamaha XS650 is quite a remarkable motorcycle, the parallel twin engine started life as a 500cc unit in the Hosk SOHC twin that first entered production in 1955.
1980 Yamaha XS650 - Motorcycle Specifications
The Yamaha’s line of descent actually reaches back to 1955 and the Hosk SOHC 500 Twin, which in its day was the only Japanese motorcycle capable of running with the fast British …
Other JDM Machines - Old Japanese Bikes
The subsidiary, Japan High Speed Agency, made the HOSK or Hosuku (ホスク号) brand of motorcycles which included both 2 stroke (123cc) and 4 stroke machines in displacements …
1973 TX750 - Yamaha XS650 Forum
Apr 14, 2019 · The XS650 is a much simpler (aka more primitive) design that reportedly dates back to the German-designed Hosk 500 vertical twin of the late 1950's. It has a simple two …
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