That was a helpful read, thank you. So, I did turn it over a couple times while in the water but it never started and only cranked it for a couple of seconds. It lights up fine and turns over fine. Instead of removing the intake manifold I just loosened it and stuck a 1/4" vinyl tube in there and sucked out all the water with a pump. Also removed the big plastic box at the back where the exhaust is, it was dry, the hose had a little water in it, and the muffler was about full, pumped that out, pulled the air box and hoses to the supercharger/intake manifold. I have done a couple oil changes held it at full throttle and cranked it for 5 seconds between each one and pumping the oil/water out from the dipstick tube. It is coming out clear oil now.
When removing the hose from the supercharger to the intake, I started with the intake side first, as I went to start on the supercharger side it just fell. It had a clamp on it, but the clamp was loose and the hose wasn't even attached to the supercharger I had just gotten it back from the mechanic the day before to do the supercharger rebuild and get it ready for summer. He said he took it out on the lake and it was fine, so either he was lying about that, or didn't check it for leaks when he was done. I will admit, I was working on the IBR last year and had pulled that grate that sits above the jet pump off and forgot to put it back on, so those 6 screw holes were open under water when it was sitting. I don't have a lift for it yet so I tie it up in our slip, I am only here at the lake for 3 weeks and it has worked in the past, but sitting there with those holes exposed I'm sure was part of it.
The mechanic just happened to be at our condo working on someone else's ski when it went under, and he did help me get it out, as we were doing that he noticed that the grate wasn't there and swore that it had to have fallen off at some point because he knows he saw it there. But it wasn't. So I know I am partly to blame for this, I am also new to owning a waverunner, and have never been on anything as fancy as what I have now, which is why I paid someone to get it ready for me. I forgot about the grate, but he is the expert, and took my money and told me it was ready to go, and not only overlooked a very important part on the outside leaving 6 holes under water, but he also did not get the hose on the supercharger correctly.
Luckily the guy in the slip next to me had a lift for his boat, long skinny boat so the bunks were close enough together that my ski sat on it, he had gone out for the evening and told me I could use it if I needed. I got it up there, raised it, drained it, put the 6 screws back in, and by that time he was back and needed to put his boat back on. So I floated my ski back over to our slip, tied it up really tight and went to bed. It was after midnight at that point, I had no way of getting it to a ramp or out of the water so I crossed my fingers. Woke up the next day and the ropes were the only thing holding it from going under, or bobbing. Called the tow boat and $1,200 later had my ski on the trailer.
So, questions, and sorry for the long post, just a lot to unravel here. I did stick the vinyl tube in the supercharger and there didn't seem to be any water in it. I had just gotten it back from the mechanic that did the rebuild, but honestly now not sure if I trust his work on that. I am very comfortable with a wrench, do my own work on my boat 87 Cobalt 18 open bow, and my car. But I have never worked on a supercharger. I have watched some videos and it seems to be easy enough to take off. I have the shop manual and it says if there is water in the oil or the supercharger hose to take it apart and replace the slip clutch needle bearings and shaft ball bearings. Is that something I can do with basic tools? What should I look for to check that the rebuild was done? Would the disconnected hose have anything to do with the ski sinking? Anything else I am missing? Thanks again for all the help.
