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Need some jetting help


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My banshee has the following mods....

 

Dune/play port

Fresh bore/hone

T5 pipes

4 force 4's

Cfm airbox with k&n's

Boss intake

Dynatek Cdi

Stock carbs

Passed the leak test

 

The carbs have been cleaned in my sonic cleaner and the choke tube is installed. I have 310 mains, 27.5 pilots, air screws at 2.5 turns out and stock needles in 3rd slot. I got it fired up and was trying to dial the pilot jet in. It sounds pretty good and revs clean with no noticeable flat spots. The thing that concerns me is I can turn the air screw all the way in and it make no change in the idle. I can also open them all the way up and no change. After all the reading I've done I figured I would be at 27.5. I don't have any 30's right now, but looks like I'll be ordering them. The main will be easy cause I'll plug chop it and I'll be able to feel the needle. I know how to jet these carbs, but I've never seen one where the air screw makes no difference. And yes I gave the motor time to catch up to the adjusted mixture. Thanks

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Yes. The V4's like one size larger pilot than normal. So I would start with a 30.

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