For the record, TPS stands for Throttle Position Sensor, while TPMS is Tire Presure Monitor Sensor (or System)
Several times the question has come up about adjusting the TPS on the C14, and so far no one has posted any information about results from doing it. Well, here you go...
My bike always had a dead zone, or delay between the throttle plates opening, and the EFI and ignition kicking in. It seems the ECU is a little bit delayed in response to the change in air flow caused by the throttle butterflies beginning to open. The delay was most noticeable when in low gear, navigating steep down hill switchbacks. While it is a pretty hard hit, it is not the same as the hard hit that all of our bikes do when you do a abrupt roll on of the throttle.
My bike also has terrible vibrations, and it's had them since day one. The only things that have made a difference to the vibrations were things that affect the flow through the motor (ZX14 exhaust and a K&N filter have reduced vibs). The vibs are worse in ECO mode. Also, my bike gets average to pretty good fuel mileage, which I don't mind.
The TPS is mounted on the right side of the #4 throttle body, secured by a very soft (i.e like butter) aluminum security Torx screw. It requires removing the side fairing to access it. I started by adjusting the TPS clockwise, which would tell the ECU the throttle plates were more open then they were previously. I only moved it about 1mm, and the results were not desirable.
The bike ran about the same with respect to power and how the engine responded, and the dead zone was gone. However, I noticed the bike ran much hotter, as the temp gauge would be around 4 bars on a 70F day with low RPM cruising, and the cooling fan was kicking on way more then it should have been. One example I noted was the fan came on while riding in second gear at about 25MPH, when the outside air temp was indicating 75F. Also, the fuel mileage dropped a bit, as I expected, and engine vibration went up by a very noticeable amount. The vibs were now about the same between ECO and non-ECO modes. It had no affect on abrupt throttle openings that most would like to cure (as expected).
I ran the bike for several weeks with it set there, but decided the increase in vibrations, heat output, and the constant cycling of the cooling fans was not worth it. I readjusted the sensor back to about 0.5mm from the original position, and this seems to be a good compromise. The temps are back to where they were, the dead zone is still not obvious, and the vibrations are back down to about where they were (maybe just a little worse).
So, in short, unless your bike has symptoms like I described above, there really isn't any benefit to adjusting the TPS.
Hope this helps.