Have a couple small dents in the exhaust pipe. This is not 100% but you can get most of one out using a socket that just fits in the pipe along with an extension (s). First you have to get the pipe clean. That is the hardest part. Then put some lubricant in the pipe and push the socket up till it stops at the dent. With a hammer drive the socket up about a 1/16 of an inch and tap on the sides of the dent with a hard plastic hammer. You can use a metal hammer but you will have to get out the hammer marks when you’re done. Drive the socket up another 1/16 ” and repeat till the socket is centered in the dent. Pull the socket out from time to time to see where its at. Be sure you have something to drive the socket out from the other end as it will be stuck and the extension going to come off when you pull on it. When you get the socket centered in the dent, hammed all around it. Using a ratchet on the extension, turn the socket. When it becomes free you have done all you can. On deeper dents start with smaller sockets and work your way up. Pipe for this motor is easy to find locally so I’ll probably replace it at some point. The 1″ pipe for the Pal has to be ordered and with shipping can get pretty pricey. Have also made some seal repairs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.