Bing 64 Floats

[Avidfox]

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

[Av8r3400]

Can you post a photo of what you mean by notched?

Option 1: Get a set of complete rebuild kits for the carbs, including floats, and rebuild them both. The idle air screws should match from side to side. Usually between 1 and 1-1/2 turns out.

Option 2: Send the carbs to a Rotax facility for rebuild.

[Avidfox]

I will see about the pics tonight. The floats that don't have any issues have the corners removed on one side of each of them allowing the floats to sit parallel to each other in the bowl. When you look at them installed on the posts you can see how they are form fit. The the other two are just small rectangular (brick) floates that sit at an angle to eachother when installed. They are actually binding when I fill the bowl with gas and bob them up and down. It is also the side that I am having trouble with. I just hate paying 50$ each for maybe 2$ worth of floats. Everyone needs there cut these days. Even in the experimental market! I already have all of the other parts that I need, I think I am going to get out the dremmel anyway and see if I can shave the corners off and see if they will still float! Just wondering if anyone else has tried it.
Thanks,
Dave

[Danzer1]

I'd go with new floats. The walls on them are usually pretty thin, shaving - even if it did work, could be a point of failure in the future.

Greg

[Av8r3400]

The floats should sit at a slight angle to one another. That's how they are designed to fit. If your's are binding, you need new floats.

"Shaving" them with a dremel will ruin your $50 floats.

[Avidfox]

I tried to post pics of both types of floats three different times with no luck. I found floats thru Spruce and Spec for $90 including shipping. I am going to notch the ones that I am replacing and stick them in a mason jar for a couple of weeks to see if they will saturate. I guess It is a known problem because I can only find the new notched style.