New carbs- one barrel pulling in too much air Options

[tornik550]

I purchased brand new weber 44 idf carbs from redline weber recently. I set everything equally between all barrels. I set the idle stop at 1/2 turn on both carbs. The engine started right up. I disconnected the linkage. Checked the air flow with a snail. Equal readings on cyl 1,2. Cyl 3 was pulling in so much air it was off the chart and cyl 4 was barely getting any air. I backed off the idle stop completely and I am still getting a huge amount of air in cyl 3 and almost none in cyl 4.

I took the carb off and visually inspected. Everything appears normal. Both butterflies appear closed.

FYI- I am certain that this is not a valve or cylinder problem. Everything was fine with my previous setup.


Any ideas?

[rhodyguy]

by balance adj you mean air bypass screws right? did you try closing all of them? there is no reason for the plates to be misaligned. mblizzard had issues with his brand spankin' new carbs. redline. send them back. or screw around with them for a month or so and they might work. or not.

k

[ThePaintedMan]

by balance adj you mean air bypass screws right? did you try closing all of them? there is no reason for the plates to be misaligned. mblizzard had issues with his brand spankin' new carbs. redline. send them back. or screw around with them for a month or so and they might work. or not.

k

I agree again. Didn't think of that. Make sure all 4 bypass screws (the ones furthest to the outsides of the carbs) are completely closed before doing anything else.