Hi, I am freshening up my Bing 64's and noticed that one carb has notched floats and the other has rectangle floats. The rectangle ones look like they have been stuck or are sticking. Can I notch them myself? Also, I noticed that one carb needle screw was 1/4 turn out and the other was 1 turn out. I haven't rebuilt carbs sense high school so I can't remember if that is normal. It doesn't seem to be thou. I looked at both needles and the do not have any signs of wear or corrosion. The 912 that they go on has 120 hours and was hung on my bird in 94. When I parked it (bought it) last fall the engine was running rough and didn't have the power that I new it should. Any help or tips will be greatly appreciated!
Thanks,
Dave