HELLO I BOUGHT MY 88 CBR600 ABOUT 6 MONTHS AGO. IT HAD BEEN STORED FOR 2 YEARS. I SEAM TO HAVE A PROBLEM IN, I THINK ITS THE REAR BEARING ,I HEAR A CRUNCH OR POPING SOUND WHILE ROLLING ALSO VIRATION OF GAS TANK WHEN REVED UP AROUND 5-600 RPM ANY SUG. WOULD BE HELPFUL. THANK YOU FOR YOUR TIME