SOHC.co.uk Forums > CB750

Holy air screws

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Jae:
Hi,
I went and bought 4 new air screws, popped them in and totally unable to balance my carbs, so old ones have gone straight back in.
The only difference I can see is that the new ones seem to have a small hole in them half way up the stem...Whats that all about? Have I gone and bought the wrong air screws  ::)

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