$20.00 on Ebay
That looks like an Older Briggs Oppossed Twin with Points and condensor.The Cast fin Flywheel was used on those.
Are you sure it's not Model number 401701?
if it has points Just cut the wire going to the points and stick a replacement Electronic ignition coil in it's place.The "Kill Wire" that goes to the switch is not Powered so your good to go.
Just hook the Coil kill wire to a toggle switch and hook the other wire coming from the toggle switch to a Ground.
Summer is over here and i have taken another shot at this project, and confirmed my screwup :-)
The coil i bought beliving it was a system without breakers was the wrong model as i found breakers hidden deep inside behind the carburator.
Now it seems that i have to either find, and buy, the right coil and probably breakers, or convert the system.
I supose that your sugestion was a description af the second alternative.
I think (!) i understand how to follow your instruction, but i have a few aditional questions, if you don't mind.
Is the electronic ignition placed where the breakers are now?
If not, where should the be placed and controlled?
Do you have some partnumber or link? Hopefully i can find it in Sweden.
When i read the number on the engine i think it was 401707, but i will check again, i could have read it wrong,
it is a Opposed twin and has points and condensor as you say!
Thanks a lot for all help.