Just cracked open the top of my Husqvarna TE 610 and found this staring at me. I was troubleshooting a cracking sound under low RPM throttle coming from the engine, do you think this could cause that? I am assuming this is throwing off the valves on the intake side a bit. The lifters look perfect, do you think this could have something to do with the valve springs being bad? Camshaft lobe, opens the INTAKE side valves of a 4-stroke. The damaged side is the ramp down side, or the side that starts closing the valves again.