Swamped the Airslot

[dizzyspots]

Ok....motor is frozen. pulled the heads..found some corrosion is port lower cylinder...soaked with Marvel x 1 week...wont budge even with a socket and breaker bar on the flywheel not...tried electric impact as well...doesnt move.
Carb/intake look clean...gonna pull the intake and take a look at crank/bearings Ive built several auto v8's over the years, but not an outboard: 1987 Evinrude 140 looper..(200hrs) open to ideas and suggestions.....Mike