Yamaha YR1 (1967)
The Yamaha YR-1 is a vintage motorcycle from 1967 which features a two stroke, parallel twin engine with a capacity of 347 cc. It has a compression ratio of 7.5:1
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The Yamaha YR-1 is a vintage motorcycle from 1967 which features a two stroke, parallel twin engine with a capacity of 347 cc. It has a compression ratio of 7.5:1
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