03 YZ450f valves

Would an exhaust valve with .009 to much gap cause popping on decel, a pop while revving the engine a few times in a row, and a misfire while holding a steady rpm?

Don't know why it's out but am going to pull the valve this weekend to make sure nothing is wrong with it or the seat.

From the bottom side everything looks good as does the piston.

Hopefully it's only in need of a shim. :cry:

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