Run some various tests for spark. You may have a bad coil, points or condenser. DO NOT leave the ignition power to the coil for a long time
1...Points may not be closing. Bump engine, get points visually closed. Jump power to coil with voltmeter from coil points connection to ground. You should read very little voltage perhaps a volt or less. Full battery means the points are not closed.
If voltage is low, take a wire from coil tower to a plug etc for test gap. manually open points and let them snap closed and they should spark and you should get a spark from coil
2...Points may be opening but there may be a short. Missing/ broken points insulator, short where terminal/ wire goes through distributor wall AND OR bad condenser Bump engine so points are open, OR JUST manually open points with finger etc......measure points side of coil to ground. You should get full battery voltage. As before, except opposite, with points open and power to coil you should be able to short points connection to ground and re-open, and get spark from coil tower.
