Re: lower unit drain plug
Mine is tight like that also. I take a large gorilla-size slot head screwdriver and file the tip so it will just fit in the slot on the drain plug, tap it in the slot carefully with a small hammer until it's wedged in there tight, then take a crescent wrench on the end of the screwdriver real near the plug, and turn that sucker. Same way to tighten it back but don't put too much muscle on it to strip the threads. Works like a charm! Good Luck!