that sucks... Feel for you (BTW, would never say ITYS)
hopefully its just a bit of the spark plug got stuck in a valve and bent the valve. Pull the heads and get eyeballs in there.
the spark plugs look like they ran super hot.
SAE inverted flare with 3/8-24 threads. A very specific port tool, and a custom port tap.
https://www.tristareng.com/portfolio-gallery/custom-sae-j512-inverted-flare-seat-tool/
A standard tap will not work
It will need to be custom ground with clearance for the inverted flare
If you have an outboard (guessing from the lack of info), the magnets are what induce a magnetic field in the coil.
So you may need a new flywheel, or if you have the magnets, epoxy them back in
Oil pressure sender goes in the oil galley plug at the back of the china wall. The water temp sender goes in the intake
May want to proof read your thread prior than relying on speach to text
Did you replace the fitting on the H frame swivel?
Did you replace the O-ring at the bottom of the H frame pivot tube?
When running on muffs, are you plugging the lower pickup
With any new to you boat, do all the maintenance that the prior owner didn't do.
Iboats sells impellers and pump kits and any other maintenance items. And as racerone pointed out, so does your local dealer
