First of ditch the kdx snorkel. Your base line settings should be 128 main, clip #3 from the top stock pilot and 2.5 turns out on the mixture. Also I would replace your spark plug, I know they say they are good for a gazillion miles, but I have seen many a hundred thousand plus dollar cars come in on the hook with fouled plugs. And it sounds like your plug has taken a beating. My two cents worth hope you find the problem.

 

I HAVE DONE ALL THAT WITH THE EXCEPTION OF THE AIR BOX. BUT I DID NOT END UP REMOVING THE AIR BOX BECAUSE THE PLUG LOOKED ON THE LEAN SIDE. AND WITH THOSE SETTING I WAS IDLEING EXTREMELY POOR.

 

vaccum leek ? did the t mod and found the rubber plugs to be less than add.