I have a 2008 STX 15F. When riding the other day, the ski was running great, then suddenly I lost about 1300 RPMs and could only go about 45mph, was pretty far from the marina, by the time I got back I could only go about 15mph. Battery light started flashing. Engine finally shut down just when I got to dock.

I took it out of the water and thought the negative cable was a little loose. I tightened it, and tightened two nuts on the rectifier.

It then started back up. On land seemed to have full RPMs again.

Put back in water and it started but immediately stalled. I was able to restart but pulled it out for fear of potential damage.

Does the description above sound like something that could be caused by a loose cable?