Yamaha Hatsudoki Kabushiki Kaisha

Masahiro Nishioka

Hirotaka Shibata

Several embodiments of balloon tired, off the road vehicles embodying improved cooling systems. In each embodiment, the engine is surrounded by a cooling shroud and a fan is provided for driving air across the engine. The fan is offset from the engine crankshaft axis and is driven by it. In some embodiments, foreign matter is precluded from entry into the shroud inlet by positioning the inlet in a protected area such as over the fender, under the body, under the fuel tank, or under the seat.

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Iwata, Japan

Masahiro Nishioka