Hi my name is David..I went yesterday to look at two Suzuki AN125s a 2008 and 2011 model, the 2011 model was a bit sluggish and slow compared to the 2008, is it possible that its restricted? And if so does anyone have any info on derestricting it? also I drove both bikes within a half an hour of each other and the 2008 was definitely faster than the 2011