Gap should be 0.20 if you are regapping old points 0.18 Good luck!
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 point gap for the 50 hp Johnson outboard is set at .020".
The magneto point gap on a 2hp Yamaha outboard is 0.35mm, or 0.014".
.030
The recommended plug gap for the 1972 model, 20 hp Johnson outboard is .030 in.
0.020 in.
.020
.020in
.030" Champion L4J (L86C) or NGK BR6HS
0.030
The points gap on a Merc 40 4hp is .020
The points gap on a 1973 Johnson 25 hp outboard motor is typically set between 0.020 to 0.030 inches. It's important to check the specific service manual for your motor model, as the exact gap can vary slightly depending on the specific engine configuration. Adjusting the points gap is crucial for optimal ignition performance. Regular maintenance will ensure the outboard operates efficiently.