Yamaha Merken Yamaha Ybr125 Yamaha Ybr125 generaties Yamaha Ybr125 2008 Yamaha Ybr125 2009 Yamaha Ybr125 2011 Yamaha Ybr125 2012 Yamaha Ybr125 2013 Yamaha Ybr125 2014 Yamaha Ybr125 2015 Yamaha Ybr125 2016 Yamaha Ybr125 2017 Yamaha Ybr125 2018