Bike nosing over at 5600-6000 RPM

What I have is an fuel injected 83 gpz 1100, the air box has been replaced by a set on k&n pods(No ATS on bike). The bike is losing power around 5600-6000 rpm. It seems like it could be the clutch because the rpm shoot up even though the bike is dropping the nose.

1. Would the bike not having a Air Temp Sensor on it cause it to do that?

2. Would a clutch that is slipping cause this?

3. Could this be caused by a lack of fuel? What fuel pump and adjustable fuel pressure regulator could I replace my stock stuff with?

Thanks In Advance,
Tee

If the bike stops accelerating, but the RPMs keep increasing, then it definitely sounds like the clutch.

What you described it usually a pretty good indicator.

if you put in 5th gear at a low speed and nail the gas,,, rpms come up and bike dosent take off,, clutch