First time doing this and I though I would consult with the experts....
Checking the valve clearances on my 03 WR 450. Everything is pretty close to spec except the left side intake valve is at about 0.30mm. This seems odd to me that one valve would be that different? The "feel" with the feeler gauge is a bit different too. I can't tell if that's because I'm using a thicker gauge and it's just flexing as it slides under the cam lobe or what. It seems tight from about 0.13mm up to 0.30. I'm not forcing them under by any means.
Here's my question. Is it possible that one valve would have a much larger clearance than the others? doesn't the clearance get smaller as the engine wears?