Yamaha Motor Company Limited (ヤマハ発動機株式会社, Yamaha Hatsudōki Kabushiki-gaisha?) (TYO: 7272), is a Japanese motorised vehicle-producin company. Yahama Motor is pairt o the Yamaha Corporation an its headquarter is locatit in Iwata, Shizuoka. Alang wi expandin Yamaha Corporation intae the warld's biggest piano maker, then Yamaha CEOGenichi Kawakami teuk Yamaha intae the field o motorised vehicles on Julie 1, 1955. The company's intensive research intae metal alloys for uise in acoustic pianos haed gien Yamaha wide knowledge o the makin o lichtweight, yet sturdy an reliable metal constructions. This knowledge wis easily applied tae the makin o metal frames an motor pairts for motorcycles. It produces motorcycles, aw-terrain vehicles, boats, snawmobiles, ootboard motors, an personal wattercraft.