I have a 77 superglide, I has a SS easy e carb on it and when it is at idle, "warm or cold" it starts smoking. But as soon as you give it a little gas it stops smoking. And if im on the interstate and slow down to an idle it will bellow out smoke and kill every mosquito for 100 yards. But again, as soon is i turn the throttle just a little it clears up. What could be the cause? bad float?