Weird start/non-start problem - help needed

[HPsauce]

Originally Posted by HPsauce

I've already made up a wire, using 6.3mm tags as MJ suggested. I'll try it another day though, once I've worked out EXACTLY which holes to bridge - don't want to blow a fuse somewhere!

This morning being sunny, I decided to look at the J207 a bit closer. Attached is a photo of the socket with the relay removed.

It's interesting in that although the two thick red/black wires are actually the starter circuit (pins 30 and 87) on the relay they use what appear to be thinner steel contacts.
The wire from the F125 switch is thin and goes to the big lower copper socket, pin 85.

The top big socket (pin 30) is just fed by a short loop of wire from pin 86.
This is actually shown in the wiring diagram MJ posted earlier, I just hadn't registered that...…
For reference the pin correlation between the wiring diagram and relay numbers is as follows:
2=30
4=86
6=85
8=87
Anyway, my assumption now is that to bypass this relay I need to put my wire in the steel contacts (30 and 87 = 2 and 8), connecting the two thick red/black wires.