Like Bill says, tough to judge based on audio. I have never seen one of these engines with a worn wrist pin though. Usually, the wear will be on the crank end of the rods reulting from water or not enough oil in the mix. You can check for slop by gently rocking the flywheel back and forth with the head off checking for lost motion when the pistons move. I’m thinking the noise is more likely from the mag plate or cover hardware. These engines have a wavy washer sandwiched between the mag plate and aluminum retainer to provide stiffness so the mag with not move on its own while the engine is running. Once these wave washers get worn, the mag can wobble a bit, allowing the coils to rub on the flywheel.
I probably wouldn’t trust the 60PSI compression reading, compression gages are usually inaccurate when used on these small combustion chambers. I would hesitate to pull this powerhead apart unless you can really see an issue with rings/pistons/cylinders. 70PSI readings seem normal for these little guys. If you decide to pull it apart, you should take time to inspect and measure everything closely. New rings aren’t going to help worn/rusted cylinders much.
PS: I listened to that video again, and didn’t hear anything unusual, the engine seems to idle nicely, I would leave it alone unless I’m not hearing the noise you are concerned about.
