Do what scout 2 mentioned. I've had starters lock up even when I was on the water. Luckily a quick smack with a pair of pliers or hammer and I was able to motor back and replace it. Starters are a wearable part, they just wear out after time. When you noticed the starter was hot was this after cranking on it or just cycling the key? If it's hot it's probably shot. Check amazon you can get a starter WAYYYY cheaper than going to any marina. If your alarm is going off it could be from a faulty starter. None of my boats had "dummy lights"(not calling you a dummy by any means! Lol) Only time alarm would sound if oil was getting low or faulty connection. Also I would see if you can move the fly wheel like stated in previous post this will rule out any major issues. Check the head of the starter if its engaged to the fly wheel try knocking it down like I said then replace it. I hope this helps and good luck!