If it were me I would clean up the high areas of the marring back fill the low spots with JB Weld and sand back to a smooth surface.
I can’t say for sure it will work but that’s where I would start.
Best of luck.
I was never a big fan a crowds and watched from far away. Of course I had to take my kids but they followed in my foot steps and at the age of 7 asked why we were going there are just so many people.
Years ago a friend begged me to use his boat as he didn’t want it just just sit unused.
I agreed and of course on the first trip the lower unit blew up.
I felt terrible but he insisted that it was okay and things happen. He had the lower replaced and again asked me to use the boat. I said no...
Just reminded me of a friend that was selling a car. A guy called him said he had a broken leg and asked if he could bring to car to him. He did and the guy was in deed in a cast. He asked him to take him for a test drive and then asked him to stop at the store to get some beer. When they got...
You must find out what the beep is and what’s it’s for before running it anymore. What ever you do don’t find the wire that are causing the beep and unplug them.
If everything is good I would leave it well enough alone. I don’t think you would have any benefit from a manual plate if its only going to push the motor back a few inches.
As they say if it ain’t broke don’t fix it.
Carb rebuild would be a great plan. If the pump
is oem rebuild it rather than replace. You’re not going to be able to do any fine tuning of the muffs. You need to be in the water for best results or a very large test tank which most don’t have access to.
The motor should be fine if it was only a minute. The impeller should be replaced. Even though it was lubed up it could have burned and hardened the tips. You come to far to take that chance.
That just brought back memories from automotive tec class when the instructor said there is no such thing as cold just less heat.
I’m pretty sure half the class laughed thinking he was making a joke. But it’s true.
To me this would be normal especially if your just trolling around for hours and not generating any heat under the cowl to help displace the moisture. But that’s just me. Sorry I can’t be of more help.
Still not sure what say. As mentioned before I have seen it happen. Maybe yours is worse than what I have seen. Can you post a pic?
Checked the running temp? Thermostat in working order or even there? Lots of people just take em out but they are important.