The maker points on the 4.5 hp Mercury outboard, are set at 0.020 in.
The point setting on a 30hp Chrysler outboard would be .020in. if you are refiling your old points they should be set at .018in
The maker points on a 9.8 hp Mercury outboard should be set to .020 in.
The magneto point gap on a 2hp Yamaha outboard is 0.35mm, or 0.014".
The point gap for the 50 hp Johnson outboard is set at .020".
Set the gap at .035 in. for a 115 Mercury.
The points gap on a Merc 40 4hp is .020
Gap should be 0.20 if you are regapping old points 0.18 Good luck!
When set properly, the gap would probably be about .018". The correct way to set the points would be to hook up a dwell meter and adjust the points for 30 degrees dwell.
Gap the spark plugs to .035. Set the points to .018.
There are no points on a 96.
I remove the distributor and rotate until the points are at the widest opening. Then using a .017mm fueler Gage I set the point gap. Reinstall the distributor, set timing and roll!