Throttle cables just needed adjusting at the carb to give more free play.
I also took the dremel rotary out and removed some of plastic from inside the housing where I noticed the secondary throttle cable was rubbing. This may not be necessary as I did this before I adjusted the cables.
If you adjust the throttle cables to give plenty of free play before you install I doubt it will rub and the throttle should not bind like mine was. Pretty sure the return cable was too tight when the bigger throttle tube was installed.
I forgot to take a before pic of the housing so you will have to compare yours to mine
I also took about 2 or 3 mm of the top of the cable adjuster because it was rubbing.
04 R6 or R1 throttle tube vs 06+ R6 throttle tube
Stock Ninja 250 vs 06+ R6
Will have a comparison of zip tie method by weekend.