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In Reply to: Rebuilt NAA ran then stalled -no spark posted by Dave on Wednesday, June 24, 2009:
10.5 volts while cranking seems a little low for a 12 volt battery. Check your point gap, make sure they open sufficiently. Do you have spark at the coil? Check it the same way you check the spark plugs, ground the wire coming out of it that goes to the center distributor cap post. If not, pull off you cap, rotor and dust cover and turn the engine over until the points are open. Turn on the key and jump across the points set with a small screw driver that has a good plastic handle. You should see spark at the screw driver and at the coil lead. If not you probably have a bad ground, no power to the points or a bad condensor. If you do have spark, then turn the engine over until the points close. Hold the coil wire to ground and manually open and close the points with your screw driver being careful not to hit both sides of the points at the same time. If you don't have spark then the points need filing or replacing. Another thing to check is excessive wear of the distributor bushings. With your points open grab ahold of the shaft the rotor goes on and see if it moves back and forth enough to close the points. If it does your distributor is worn out.
-Leon
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