My 2002 Stone’s valves was what I Thought a little Excessive or “busy” noise wise, at best. I finally got around to getting them checked today, as well as the TB’s checked, which was good.
Using the 4 and 6 values both sides exhaust was “a couple thousands off (wide) and the intakes were a little open also. Going home, after warming up, it was much quieter, could still faintly heat them, but much less pecking noise.
All is well with the Stone now, heading to the NC Outer Banks this week end👍