I have a 2000 xr 600r. I have been doing a lot of rock climbing and i have been noticing that my hand at the top of each climb is cramping horribly. At first i just thought i was out of shape, but i ride with a group of guys with bikes around the same size from multiple different years. My clutch is the stiffest for sure. My clutch cable seems a little draggy but i don't think that it is the complete issue. Is there a way to adjust the tension on the clutch???