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Difference between revisions of "Yamaha YR1"
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[[File:yamaha-yr1-1967-1970-0.jpg|600px|1967 - 1970 Yamaha YR1]] | [[File:yamaha-yr1-1967-1970-0.jpg|600px|1967 - 1970 Yamaha YR1]] | ||
This bike was the largest in the line that year. It was the first 350 cc they had build. In 1967 the engine was the first to use | This bike was the largest in the line that year. It was the first 350 cc they had build. In 1967 the engine was the first to use aluminum cylinder with cast iron sleeves. This bike it was equipped with a Twin cylinder, two-stroke, five speed. | ||