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moped motorcycle yamaha

  1. All EV Conversions and Builds
    A friend gave me an old rusted 1985 QT50 Yamaha "Yamahopper". The engine block is combined with the transmission - a rather simple design, I'd say. But it had one problem. The engine head and piston have been missing for years. Judging by the bald tires, someone had fun till they seized...