Just did my valves and the exhaust were a bit loose and the intake were fine. Would this be an indication of the bike running hot or something.
They seem to be set a bit loose from the factory, I tightened one up after about 1000 miles and haven't had to make a change since, around 11k miles now. The valve clearance actually gets tighter as the valves mushroom and the valve seats wear, so you should be just fine.
You have a 610, am I right? Although they say that the valve clearance should be the same on intake and exhaust valves, the dealer's mechanic told me to give a bit more play to the exhaust ones: about 0.08 mm instead of 0.05. In fact, they become hotter than the intake ones, because of the exhaust gas heat, and so they expand more. However, I think that who decided 0.05 for every valve had his reasons and so I adjust them all using that value.
I agree with people who think that a bit looser, like 0.0025, it's ok, while it would be bad if they were tighter. In fact, I try to do .05 mm, but obviously I can't be perfectly precise, so first of all I make sure that the .05 thickness gets through the gap and that the .10 one doesn't. Then, I consider that from the point in which the .10 doesn’t pass anymore to the point in which the .05 doesn’t, too, the screw rotates a perceptible amount of degrees. So I put the screw in the .05 position and then I leave it a bit rotaed towards the .10 position. I think that the result is approximately a .06 mm gap.
