Honda GX25 Update
The Honda GX25 that I un-boxed for quite some time ago has been started and runs great. I have since moved and it is in storage. The plan is to find a suitable alternator for it and also to create a simple ECU that can be controlled from the roboard. To begin with I will most likely just write the ECU as a routine in C on the roboard directly and use one of its many ports to controll a little RC servo on the throttle.