Hi Stephen. I thought you may like to know another way I have got my twin going on 2 plugs. I checked out the Bantasaw suggestion and from what I see it's only an ignition module NOT a full coil. Here's whats working for me. Get 2 coils off power torque motors. Your local mower shop should oblige getting some second hand ones. Pull one coil off the "U" shaped former and push it onto the twins old "E" shaped former. (twin coil removed first of course). Bolt it on as the original twin coil would, but here is the magic. Wire the second coil primary IN SERIES with the one up at the flywheel. Hook up a Victa ignition module as per normal. Mount the second coil up the front near the front plug, and the lead from the back coil should reach the back plug. Mine fires up well on the back plug and the front plug comes in quickly when the motor starts to warm up. I have acheived full power no worries at all. My hope is the ignition module will live a long life. Lets hope. If you need more info I'm happy to help.