hi there, I am from cyprus. I had cbr 600 rr but now bought one cbr 1000 rr 04, with 2000km. When I reduce speed form 50 km to 20 km I hear engine noises coming under the gas tank. Some mechanic told me it might be the timing chain tentional and that it´s normal reaction. Does anyone have any comments comments that might help me figure out wether this is normal or not? Thanks in advance!!!