I’m not sure it has any actual rubber lipped seals anywhere. The drive shaft seal appears
to be cork washers stacked….. not sure what the prop shaft has. I don’t believe you’ll
find any over the counter gaskets for this motor for sale, so you’ll have to make them.
I’m not sure what kind of coil your motor takes. A photo would be helpful to
determine if an alternate coil could be fitted or substituted.
Have to tested the old coil with an ohm meter?