Pulled the top plug boot, engine died. Repeat top plug test, engine died. Pulled bottom plug lead, no change, engine keep running. Repeat bottom plug test, engine keep running. Gave both plug boots a good push inwards and a gentle jiggle while pushing hard to seat the plug boots. Repeat test, pull top plug boot, definitely a drop in revs, engine kept running with a vibration to the engine. Pull bottom plug boot, drop in revs with a vibration to the engine. While the engine was running on both cylinders felt both boots and lead wires with bare hands standing in thigh deep water(wearing chest waders) as far as I could with the (side cover still on) No shock felt nor could I see any spark. Lighting storm approaching, wife suggested I get out of the water.