Hello,
Does anyone know the real difference between the A(#1-3) and B(#2-4) carb insulators on the NC23? I pulled my carbs off to overhaul and noticed someone installed cylinders 3-4 carb boots wrong so my order goes A,B,B,A. It seemed to be working that way though, unless I'm missing something. The main reason I ask is all of them could use a replacing, yet I can't seem to find the A insulator anywhere online, but the B insulator is available on a couple sites.
Thanks a lot!
Chase
Replacing NC23 carb insulators
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Re: Replacing NC23 carb insulators
From what i can see on the fiche it goes A,B,A,B fom left to right but what the differences are i have know idea 

- Davez29
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Re: Replacing NC23 carb insulators
Could it be something to do with the position needed for the metal strap screws to exit? maybe they have to be in a certain position? Im just guessing as I dont know.
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Re: Replacing NC23 carb insulators
when I replaced mine, there appeared to be no difference what so ever....? replaced all four with no problems