idle problems

my new polini....

well it just doesn't idle like my cag.....

the idle screw is turned all the way in and it idles fine but I have no more adujstment... anyway to fix this?

Break-in the motor.

My Polini was a little tight too until the 2nd or 3rd gas tank. Then it would idle really nice. I'm surprised I don't even need to use the choke when it's cold. And it does need a minute or so to warm up before it will idle on it's own.