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  2. Yamaha TZ 250 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_TZ_250

    The Yamaha TZ 250 was a commercially available racing motorcycle with a watercooled, two-stroke, 250 cc engine produced by the Japanese manufacturer Yamaha. The basis of the production-volume racer was the OW17 factory machine from Yamaha, which was used in the motorcycle world championship from 1973 to 1990, and with which Dieter Braun became ...

  3. Yamaha TZ 350 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_TZ_350

    Helmut Dähne on a Yamaha TZ 350 (1976) Yamaha TZ 350 (1977) Production Racer were series manufactured racing bikes. Two Yamaha TZ 350 models are part of the motorcycle collection of the Technikmuseum Speyer. [2] Yamaha often leveraged the marketing of their RD and RZ series road motorcycles by referencing the TZ series.

  4. Yamaha TZ750 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_TZ750

    The Yamaha TZ750 is a series production two-stroke race motorcycle built by Yamaha to compete in the Formula 750 class in the 1970s. Motorcyclist called it "the most notorious and successful roadracing motorcycle of the 1970s". [1] Another journal called it the dominant motorcycle of the era, noting its nine consecutive Daytona 200 wins ...

  5. List of Yamaha motorcycles - Wikipedia

    en.wikipedia.org/wiki/List_of_Yamaha_motorcycles

    The first bike manufactured by Yamaha was actually a copy of the German DKW RT 125; it had an air-cooled, two-stroke, single cylinder 125 cc engine [1] YC-1 (1956) was the second bike manufactured by Yamaha; it was a 175 cc single cylinder two-stroke. [1] YD-1 (1957) Yamaha began production of its first 250 cc, two-stroke twin, the YD1. [1]

  6. Yamaha RD350 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_RD350

    The frame dimensions of the street 350 are very similar to the Yamaha TZ 250 and TZ 350 series factory road race bikes, differing mainly in weight and front fork rake – the RD being ~27 degrees and the TZ being ~25 degrees. The frames appear similar, side by side, with the street frame adorned with many brackets for the street equipment.

  7. Yamaha TZR250 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_TZR250

    TZR 250 2MA modified for racing. The Yamaha TZR250 is a motorcycle manufactured and produced by the Japanese motorcycle manufacturer Yamaha between 1986 and 1995. [3] Yamaha produced the road going two-stroke motorcycle, loosely based on the TZ250 Yamaha racing bike. Parallel-twin, reverse cylinder and finally 90° V-twin variants were produced.

  8. Worrying About This Common Concern Can Accelerate Cognitive ...

    www.aol.com/worrying-common-concern-accelerate...

    Let's be real: Who doesn't want to keep their brains sharp? Whether that’s for keeping up with family members, remembering meaningful moments or just maintaining daily activities, brain health ...

  9. Yamaha YZ250 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_YZ250

    The original YZ250 of 1974 used an air-cooled 250cc two-stroke engine of 70 mm bore and a 64 mm stroke, which was improved semi-annually. The air-cooled motor was replaced in 1982 with a 249 cc liquid-cooled two-stroke reed-valved engine with a mechanical, rather than servo-driven, YPVS exhaust valve for a wider spread of power.