same problem w/ mine,nut only when I reach 40kph,that's the time it'll wiggle,but more than 40kph, 60-80kph,the handling is good.I might as well check some of the advises given here.
if we prefer a better fuel consumption,maybe I'll go for CBR150FI,but it's Yamaha R15FI,the looks,damn!and to think the price range of both bikes.save mode.:)