Welcome to the hobby.
Spark Plug access by removing cowl which is retained by non removable
1/4 turn spring loaded Duzus fasteners. It is common for long stored outboard
to have no or weak spark. Sometimes cleaning/polishing points is all that is
needed. What it will take to restore an old outboard to good running condition
will depend upon prior use and care. Assume nothing check everything.
Do not be afraid of grease and grime the preservatives of old outboards.
Louis