valves yz 450

I checked my valves and thy seem to be tight! is that normal? it is a 2007 never been checked.

It's the normal way they wear, yes, but it can't be considered "normal" that they are tighter than spec. The part of the valve that wears is the face, and the seat in the head. As this happens, they move farther up into the head, which makes them tight.

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