I have a pair of 2007 RXP's non-supercharged. Yesterday while riding I was getting intermittent beeping. Sometimes it would be a single short beep and sometimes a slightly longer beep. I never got any warnings on the instrument cluster, so I'm not sure what would cause it. I did notice it seemed to happen when I was running close to 4500 RPM's plus or minus a couple hunred. Any ideas?