Originally Posted by
Cray
Here is how I would do it. Pull flywheel cover, find a socket that fits flywheel not, pull plugs, trim up, spray some kind of penetrating oil into the cylinders. You kinda want to fog the cylinder walls, let sit couple three hours, then take a ratchet and that socket, rock the crank one direction then the other very slowly and just a tiny bit each time. Going a little further each time until you have a full stroke. Then spray cylinders again while rotating the crank. This is to insure you don’t have any rings stuck to cylinder walls lus if you have any corrosion it should clean them up pretty good. Please do all this with battery disconnected. Then with plugs still out spin motor over with starter in short bursts to blow as much of the oil out as you can. From there you want to make sure carbs are clean fuel is clean and new plugs. Then put in water barrel or muffs and crank it up. If it does just let it idle for a bit until your pretty sure all your moving parts are lubed back up.. do not ever rev up a outboard on muffs. Good way to blow one up. From there if she seems to run good proceed to replacing water pump, change gear lube then water test.
I used motor oil and let it soak overnight. Time for it to penetrate the rings and coat the walls. Rock back and forth and follow the other tips. Plus I would drain the lower unit and replace the oil. Also pull the lower unit and replace the water pump.
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