The marks on the mag plate are for use with the timing tools, which can’t be used with the flywheel in place. and also are NOT used when using feelers gages…
I have instructions for use of the timing tool on my website, as well as I will add a link to a video made by a guy many moons ago that details the proper use of the timing tools.
https://www.youtube.com/watch?v=eNK2TEeQQv0
If you have any other questions…hit me up..
Regards
Richard
http://www.richardsoutboardtools.com
classicomctools@gmail.com
