3w-140 Problem Update
You mentioned you changed the oil mix ratio of 100:1 Ammsoil from 90:1 to 50:1. Is this the same oil or the 50:1 oil... There is a BIG difference...
You mentioned you sealed the phenolic block, did you check to if it was warped? If so how? Most users have a habit of over tightening this component, leading to an air leak...