TPS

[Falcon 269]

I actually meant non fuel injected bike, why do you need a TPS on a NON fuel injected bike?  :lol

Like I said earlier, the TPS tells the ECU how far the throttle is open, whether it is opening or closing, and the rate at which it is doing the latter.
The ECU uses this data, together with rpm and - possibly - coolant temperature to determine the ignition timing and the operation of the EXUP valve.