On the last post I put ie not ei. I should just give up lol.. I did not need magnets. All I did was cut the center out of the fly wheel and drilled a hole in it to put in the pick up magnet. You do not need a fly wheel with a engine on ei. The prop will do what the fly wheel did..

I did not have a laeth so I just put it on a drill press and ran a grinder on it to try to true it up. I then put it on a prop balancer. I drilled a hole in it to make it balanced. It worked great.