If you can get to it, you can touch a live to the exciter terminal (the small one) on the starter. This will bypass the ignition switch.
If you switch the ignition on first, so the dash lights are on, then touch the live to the starter it should fire up.
If you can't get to the starter terminal easily, make a fly lead up with a spade terminal on one end and bare wire the other.... Connect the spade to the starter and touch the other end on the live terminal of the battery.
And report back!
How thick do i need the to be?
:derrmmmm.....
Just don't go for the thin stuff, and don't hold it long. You will soon find out
Whack it with a length of 4x2I'll try that in the morning, its getting dark.
How thick do i need the to be?