Hi Mark and prd,
I've read through all the responses and advice, I'm overwhelmed at this point in time, I too did not realise there was two solenoids, I thought there was only one.
You are correct wiring is dodgey. There was a wire running from the rear seat with some type of safety switch (it was removed). I don't know why it was removed, I am aware the elderly bloke was not safety conscious , and the fella that used it in the past was bit of "she'll be right" type of bloke.
The ignition switch (Key Switch in Greenfield Diagram) in one of the photos has a white wire, red wire and what looks like a blue wire going to it. Definitely has no engine hour meter or any other meter fitted.
Hmmm, as this mower has not been able to start with the ignition switch, it can't be killed with the ignition key either.
To stop the engine, after being set to idle at low revs for a few seconds, I undo the clps to flip the engine cover over, closed the fuel line to Off position, place cover back over engine and let the engine starve for fuel. Engine cuts off after awhile.
Since there are two Solenoids, which solenoid should be used? Wires going to two solenoids sounds silly to me.
Here's the photo of the Honda Motor specs. I don't have the wiring guide or any other details about this engine
Cheers, Bondy99