air bleed offs

[centurychris]

Hello everyone. Was wondering if someone could educate me on air bleed offs? Why would you alter them? What affects transpire from altering them, and is there a science, or some formula for choosing what orifice size? Im asking because on of my q-jet bodies has brass inserts in it. Thx.

[429bbf]

do you have cliffs book?it explains things pretty good. also which bleeds are you asking about? you have idle air bleeds ,main air bleeds , some have idle bypass air . if your talking about a marine qjet I've never seen one. i live in northern wyo.a carb no. would be very helpful. fwiw