Ive been on that site aswell
I've got a couple of engines running by using the mag to produce LT to supply an external coil.
To get enough voltage, I had to strip off the original HT winding and wind on more tranny wire for the LT.
I've got photos and a video of it all on a villiers (iirc) but I think it's on photobucket, which is a pain since they 'upgraded' with all the adverts and rubbish...
If there's any interest though, I'll reassemble it into something almost intelligible![]()