Kicker Motors, how to fix the old ones

He there, So I was given an Edel 540 and with it came a Volvo Pent Archimedes 2 stroke,4hp kicker motor and was wondering if anybody else has this kind of motor. I don’t plan on using it on my sailboat but I am on a quest to get her running again and right now I am at a stand still with the points. The point gap tool I have is for cars and is way to big to check the gap on these points since the cam is on the flywheel. So if I take off the flywheel the points are closed so I need something realy gap tool specially designed for this type of motor. Any suggestions besides “you better off just getting rid of the motor”