Just looking at the plugs you can see one cylinder is running rich and the other lean. The compression readings would rule out a scored cylinder. I would think more it being a broken reed . . . 🙄
I had one come in with a complaint of leaking seal & rough idle. It turned out to be a hole poked in the crankcase by a loose nut. The hole was covered by the crankshaft counterweight during crankcase compression. He got a new powerhead under Evinrude’s warrentee.
