Just me talking out loud...put it back together, pour a little Marvel Mystery oil into the spark holes and crank away....if it’ll even crank. Have you opened up the electrical boxes and cleaned any water in there? I sank my ski and the rear electric box was full of water....which means the solenoid and ignition coil were soaked and the starter too and all the wiring and cables....you probably also have corrosion issues with the harness connections...,time to start taking connections apart and cleaning/drying things. My ski was underwater for an indefinite period of time btw....sometime between Nov 2017 and April 2018, she fell out of her cradle and into the water....thank goodness no structural damage so that probably meant she hit water and not ice. It was suspended in a cradle in my boathouse with drain plugs open.
FYI....the ski is all fixed and running better than ever as of last week.