I have a 2 stroke, 50hp mercury outboard engine on a bass boat that I will not be using again until probably late March or early April. I have not had an outboard since I was in my teens (a long time ago) so am not familiar with correct steps to winterize one. I disconnected the fuel line and ran the engine until it stalled out, pulled the plugs and sprayed fogging oil into each cylinder and turned the engine over a few times. All lube points addressed and the outboard is in the down position as well. Is this the correct way to prepare it for the winter?