Kawasaki Brute Force 750 jetting????

[White Whale]

I am trying to get rid of the low speed misfire (10-15mph) in my 07 Brute Force 750. The quad is stock except for a dynatek cdi.
I have tried many jetting combos with not much luck. We ride at about 2200ft.

Latest combo- #40 pilots
stock needles with shims(0.065")
mixture screws @ 1 turn

The quad starts and idles fine but still will miss at that certain rpm.

Tried the dynojet kit and seemed to make things worse.
What is everyone else doing?

 

[White Whale]

Anyone????

 

[redlineguy]

Mine only miss fires when cold. After it warms up it's fine.

 

[summitone]

Are those 750 as cold-blooded as my 700 Prarie?

 

[montanasledder]

my 06 was fine until i put the dyna on it. I removed the dyna and installed the copperhead, More spendy but less low end sputter and way more top end