Bridge this plug -
Turn on the ignition and see if you get this reading on the dash -
If so check the marks on the TPS to see if they are out of alignment like this -
Carefully release this security screw, just enough to allow movement and re-align the markers -
until you get this reading on the dash.
After manually adjusting the TPS and being happy with the results I ordered the lead that plugs in so you can check the open / closed throttle voltage to ensure it is within the given range.
This arrived -
Plugged it in here -
Turned on the ignition and put the meter across these terminals -
With the throttle in a closed position this was the reading ( allowed range 1.10 - 1.14v )
Then with the throttle in an open position ( allowed range 4.5v approx )
So after my manual adjustment everything came out with in spec, for some reason though the TC still can't be changed on the fly but as stated in an earlier post this is of no consequence to me, the bike rides great and the throttle is smoother, happy days, job done !