Unfortunately I'm not the expert you are, so talking to the shop mechanic I failed to ask about the points you bring up. He did mention, and I noticed when I removed the cylinder head, that there was excessive carbon build up on the top of the piston. I attributed this to running the engine rich when someone else was using the machine with a dirty air filter.
But he did mention that the oil in the engine was THICK and NOT thin. Seems to me that gas blowing past rings would do the reverse to the oil and cause it to thin.
Maybe the fuel in the gas was old and had turned into a varnish, thus causing the oil to thicken?
But he did mention that the oil in the engine was THICK and NOT thin. Seems to me that gas blowing past rings would do the reverse to the oil and cause it to thin.
Maybe the fuel in the gas was old and had turned into a varnish, thus causing the oil to thicken?