Being a person who likes to understand how things work, I am need of some help. How does the air screw on your carby work? I tried to unscrew mine during the carby cleaning process and it doesn’t come out so I couldn’t see in there. I understand how the idle screw works as it just holds up the slide which effects the gap for the air flow and the needle height in the main jet (or is the main jet blocked by the needle at idle).
So how does the air screw effect the air flow and according to by manual it only effects it at idle. Is this right? I thought it must have an effect at all revs and this is why your bike nips up if you get it wrong.