The Nikkei 225 Index gained 85 points or 0.13 percent on Tuesday to close at 63840 points. Gains were led by Yamaha Motor (11.89%), Furukawa Electric (11.84%) and Mitsubishi Heavy Industries (8.32%). Biggest losers were Nh Foods (-8.23%), AGC (-7.42%) and Mitsui Engineering & Shipbuilding (-7.32%).