I have went through the carbs. Cleaning and checking all jets and circuits, all clean and clear. set air/fuel screw to 1.5 turns. needle 4th notch. syncro'd at idle and good till 4k rpm. replaced intake boots.
When sitting runs fine. When going to pull out the bike falls on its face with no power till 2k rpm then runs fine.
I'd check all the hoses to your emmsion system and to the ram air not just under the tank but under the front fairing too. Or it sounds like a coil pack might be going out. Check and makes sure you got the right wires going to the right side of the coil. if you got one of them switched it will idle and rev just fine but under load it falls on it's face.
