I go from the battery positive to one on the big terminals on the switch, then from the other big teminal to starter motor. Also from this post I bridge to terminal 1 on the same side (what size wire you recomend for this?)
Yep, basically just stick the switch on the main +ve cable after it comes off the battery. Use some 3mm wire to bridge the +ve to terminal 1
Then from the second teminal one I got to the resistor and from the other side of the resistor to an earth on the chasis
Yep
Terminal 2 to the coil (which wire + or -)??
And finally senond terminal 2 to the ignition switch (again which wire do I use here, I have one of the rocker switch/push button starts)?
Ignore the coil side of the switch for now.
Find the wire that runs from your ignition rocker switch back to the fusebox (I would imagine you have a red wire going to one term on your rocker switch, and one or two black wires on the other, maybe even 3 if you are running the starter from that side. Remove however many there are from that side of your rocker switch, and attach them to the coil side of the kill switch. Then run a 4mm wire from the ignition side of the kill switch to the now empty terminal on your rocker switch.
Get this the right way around! if you wire the coil side to the ignition, and the ignition side to the fuse box, it will attempt to run all the power through the resistor, and will smoke like feck
Hopefully the above is somewhere near right apart from not knowing which wires to take off for coil and ignition!
Cheers guys