As I'm new to most of this..one thing you need to start with is first thing..hose off the entire inside, batteries, ebox and all. Open ebox if it got wet inside and rinse that to. You need to clean all the salt off first before you do anything..then its time to start fixing. But if you dont get the salt off. You will make for harder to remove parts and possibly more repairs as salt does a ton of damage. That's why it's always good practice to rinse you pwc off after every time you leave the saltwater to remove salt films. Get that rinse water into the exhaust and impellers to clean the salt water out so it doesn't eat away from the inside out.