Ok, so this has been happening since about 900 miles (i have 11,000 now). My clutch lever has a lot of play up and down. At 8000 rpm it vibrates very loudly. Tried tightening the pivot screw to no avail. I tightened the cable and it helped for a little while, but now it,s back. Really annoying. I can hear it over my fmf exhaust and wind noise. Any ideas?