Reply To: 7.5 Mercury carb float inlet needle

[billw]

That’s always been a vague area. For what it’s worth, here is what the book says. You just hold it upside down and adjust the tab. The weight of the float doesn’t compress the spring. Keep in mind with those swept-back Mercs, that the carb is at quite the angle, when you run the motor in a tank. Sometimes it helps to wedge the clamp brackets back, to better simulate the angle of a boat’s transom.

Long live American manufacturing!