I am in Cyprus and looking at buying a 2006 Raider 150. Seen one I like but having taken it for a test drive it was back firing quite a bit and on occasions giving me what I can only describe as a kick up the backside ( as if someone had rear ended me). It does not cut out or drive erratically and the engine sounds like it is running nice. Any ideas before i commit to buying a wreck. Cheers.