I have what I think is a 1968 Mercury 6hp outboard. I need to get the connector that hooks onto the motor and then is connected to the hose that goes to the tank. I can't find it anywhere. All the merc ones are too large for the hole. I even ground a plastic one down to fit but the female end is too large for the male end and fuel just squirts out when you pump it. Does anyone know where I can get the proper part? All online parts stores do not list the years that the parts fit.