Thanks again Maz, I have checked 0.99/1.00 at 2.4% or 2.1 degrees and 4.65 volts at 100% or 85 degrees. Is what I got over 5 snap opens and shuts , so consistent, on the voltage thingy on the TPS, there is a small bit of play on the throttle cable not much though, like I would have on any other bike, (does that matter?) ....and.... stupid bugger turned the idle adjust out too far (couldn't see what I was doing properly) and had to take the tank off and screw it back in again, grrrr. It rode ok earlier though, to be fair, and pulled like a train.
And thanks for talking to my bike mechanic the other day, and yes you were right , the pirelli diablos have done the job nicely.
Buell X1 lightning 2001 (now in Tenerife, on Spanish Plates!) & Santa Cruz Superlight (too fat to ride), riding a 58 fazer s2 600 over here (common or what)