Re: old seahorse 18 fuel connector
Berryman's B-12 Chemtool is a solvent that you can use to clean just about anything. You can pour it in a gas tank of a car, or any 4 stroke engine and it will clean the carb, valves and combustion chamber, but too much will eat up any rubbers in carbs or fuel pumps. Not made for 2 strokes though, will break down oil in cylinders and you will burn up your engine. I use it in my lawn mower, car, truck, I/O, and I also use it as a dip to rebuild carbs on outboards. Good stuff. You can get it at any parts store.