I have a 2005 Vstar 650 that is making a whirring sound in all gears. The sound goes away as soon as I pull the clutch in. It was suggested that it sounded like a middle shaft problem. I did some research on the nut coming loose on the middle shaft but it appears that this is a problem on 1100s. Is it a problem on 650s too? If so, does the 650 have the speedo sensor hole through which you can inspect the nut to see if it is tight? If it does, where is it located?