The water out of the holes will warm. It takes a wide open run with the correct thermostat to get above warm. Especially in cold water. How do you know the thermostat is not installed?
2 different carb covers for those motors, 1 is cheap and 1is not. And I do not believe the needles are interchangeable. There is also an update kit that comes with both needles. The kit is pricey
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