Check your tank's breather hose for a slight pinch.
I double checked the breather hose and also verified that it wasn't pinched or plugged any where when reinstalling the tank.
I recently had 2 tanks of 91 gas with seafoam treatment mixed in the gas at a mixture of 1oz per 1gal of gasoline. I did notice the bike running a bit smoother and it really did help out with the hesitation issue BUT the problem is still there. The bike still bogs when I crack the throttle but it's not happening as often as before but enough to still notice it.
I'll be around 6-7k rpm in 3rd and ill snap the throttle and allow the bike to accelerate and the bike starts to pull but it wont accelerate as its suppose to, you can feel it struggle from 7-10k rpm and at 10k you feel sort of a dip in power and it kicks back in and continues to struggle but it wont make it past 12k rpm. This is when the bike runs the roughest, sometimes it will just bog from 7-10k, but you can feel it regain power and boost back to normal power from 10k and beyond. Feels like when the throttle is snapped open the bike suffocates with too much air or something, and has a hard time breathing normal again.
I've checked the resistance of my throttle sensor and made sure nothing weird was happening with the throttle at different positions. Nothing funky was happening when I was snapping the throttle. The throttle sensor readings were consistent and sensor seems to be doing its job.
I also checked the sensor for my secondary butterfly valves and made sure the readings were consistaent and not doing anything funky when moving the valves.
I also took apart my clean air system, cleaned the caps (where people would normally install block off plates) and also cleaned the reed sensor. I cleaned the butterfly valves and throttle body. Cleaned the airbox and the ram air vent.
Tried to cover as much as I could and the problem is still there. My efforts arent wasted as it has improved in terms of happening not as frequent and the hesitation is to a lesser degree than before.
I am out of idea's right now for what it could be, I am going nuts not being able to solve this problem. Knowing my bike isnt running at 100% really bugs me. I'm really considering of selling the bike at this point and buying something else with lower mileage. I know SOMETHING isn't running up to par which is why this issue is present.
Any other idea's? fuel injectors? maybe my bike needs to be remapped? New fuel pump?
I really love this bike and its killing me knowing its not running like it should especially being only 2 years old.