G'day Ken. I've worked on a mate's TreK 1130, but never with its wiring. I don't know if the Athena and Walbro ECUs are the same connector-wise, but...
Most of you know I've been working off and on with an electric coolant pump and controller which solved the overheating issues of the Tornado at low...
It should. Every time you switch the ignition on, the stepper should step to closed, hit the stop and continue stepping on the stop. It then reverses...