69 gmc needs started no spark

[lil hoodlum]

I'm pretty sure you don't need the yellow wire either. I only have two wires to my starter as well. Large power cable from battery and the puple wire. Also red wire to the batt conection to the cap of the HEI distrubitor.

I would also check to make sure the three wires coming from the ignition module under the cap is securely hooked up to the top of the HEI cap.

If your not getting any spark to the spark plugs I would do as JoffinGTO mentions and check the cap and rotor. I would also check on the ignition module which is under the rotor.

Good luck,

Keith