I just bought an old Johnson Seahorse and am interested in obtaining some info on it. The decal on the tank is very faded, but I can make out Johnson Seahorse 12. It is a twin cylinder and the serial # is 139694. Any help would be appreciated!
Yep, Chris got it right. The plugs are a fat 17mm thread and can kill someone, if you threw it at them. I had an A-50 once, which was the smaller twin.
I had an A-50 once, which was the smaller twin.
