engion is 25 horse mercury 2 cylinder it is crossfiring it will run if u unplug 1 plug wire it is a 2 cylinder its like both plugs are firing at same time
engion is 25 horse mercury 2 cylinder it is crossfiring it will run if u unplug 1 plug wire it is a 2 cylinder its like both plugs are firing at same time
the moter is a 1989 mercury the serial number I don't know I backed boat into bank and broke moter loose from boat and when I replaced the part the boat shop told me to keep old part the sereal number was on it but I lost it over the years
