84 model 75 HP mariner won't start at idle. Have to crack open throttle plates and then will not idle. Problem started after hitting a sand bar with the prop and maybe have overheated it. Would not pump water at idle. Replaced impelled. Carbs have been cleaned and compression is all around...
Good evening, my friend has a 1984 75hp Mariner that won't pump water at idle. Impeller worn? Plus, will not idle. Can adjust idle stop to keep idling but is to high. I did notice that 1 throttle plate looks to be cracked open a little and the other shut. When my friend does get it...