Ok so for the past three months my tach needle on my 954 seems to have a mind of it's own. I'll ride at a steady RPM and the thing jumps up and down constantly. I have had my other bikes do it in the past a few times. But this thing does it all the time. Any ideas as to what this could be? I'm gonna call my dealer today and see what they might say but I figured as usual I'd ask you guys and gals first.