help with 69 johnson again

[revshot]

ok ive routed my problem, it was the CD box blown, now, ive replaced it with an MSD ignition, and when i jumped it, it started right away, (meaning my contstant voltage was on the battery and i touched the key'ed red wire to the battery as well) today when i tried to do that, all i get is the MSD box sparking the distributor (i took the stator off and seen it sparking) and no engine crank, when i turn the key over the engine cranks but no spark (key'd wire hooked up to a wire that gets hot when engine turns over, and then directly to the battery)

why cant i get my spark and engine crank to come together? any tips or trouble shooting?

i should mention for a moment today when i jumped the wires again it did begin to start then i removed the wire

[gonzo]

Check the kill circuit in the switch. It grounds the ignition to stop the engine. Sometimes they are shorted.

[revshot]

anyone got any ideas on how to check for the kil circut short if thereis one?

[gonzo]

Disconnect harness and jump the starter. If it runs there is a short either in the switch or the harness.