Ain't it funny how someone can tell you what's happening with your bike before you describe the symptoms. Its almost like some people have done this stuff before.
It won't idle because it is trying to idle on the mains, which are going to be very rich at 1200 rpm, then become lean, because they are several sizes too small for the upper end of the throttle positions.
I'll go back and see what intake setup you have. Guessing it's wide open as well.
Ok I see that you have the snorkels hooked up, is there anything in the airbox chamber? Did you modify the intake system in any way whatsoever? These carbs are extremely sensitive to intake velocity due to an already low vacuum signal at idle.
Some people get lucky a couple times, get a custom setup close, and then think they understand jetting. It takes a lot of practice and dyno runs to actually know the results. The important thing for the hobby tunerto remember is that NO AMOUNT OF DISCUSSION tunes a bike. Tuning tunes a bike. Intake, exhaust, and several carb adjustments make for a lot of potential tuning combinations. You have to do your best to reason, but NEVER rule anything out until it runs well.
Float height does not affect tuning greatly until it's way off.