I finished restoring this motor a few weeks ago and have been running it semi successfully since then working out little links here and there. Currently I'm trying to diagnose it dying while in low idle but that is sort of beside the point. While cleaning the points and making sure they are set correctly I returned to noticing these notches here in the flywheel and magneto plate. I assume they are timing marks and indicate when the points should open? I'm wondering if I can set the points to open at exactly that location using a timing tool with a multimeter, as seen online in a few videos. Here's some pictures:
I've marked them Top and bottom as they seem to correspond to the pistons at exactly their highest point of travel and what I assume should be when the spark fires or the points open?
I appreciate someone enlightening me on this and sorry if it's redundant or elementary. I've done countless hours of research on the rebuild and timing/ setting points but haven't found anything conclusive.


I've marked them Top and bottom as they seem to correspond to the pistons at exactly their highest point of travel and what I assume should be when the spark fires or the points open?
I appreciate someone enlightening me on this and sorry if it's redundant or elementary. I've done countless hours of research on the rebuild and timing/ setting points but haven't found anything conclusive.