1974 15hp evinrude very little spark

[sambrigman]

So I pulled the flywheel and everything looks new.Sometime it will start and run for maybe 5 seconds and quit. This is my first old points motor and I just do not know where to go from here. The spark is very little. Could it be the coils? Both plugs little spark. Any suggestions, thanks

 

[tomhath]

The first thing I'd do is clean and gap the points. A voltmeter helps to verify the electrical contact is perfect, anything less that that or the wrong gap will give a weak spark. If it still has a weak spark or quits after a few seconds I'd replace the condensors.

 

[racerone]

Perhaps it needs a new driver coil, the one under the flywheel.