Change the coil. If there's a short circuit between the primary and secondary windings, the condenser will get hit with tens of thousands of volts every time the points break. That will blow holes in the dielectric of the condenser, and short it out in a matter of minutes, causing the engine to stop.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!