Itinerant Air-Cooled

Injection harness had a blue plug, can't figure out what it goes to, one went cold start. When l put a jumper wire on it, the fuel pump charges up. If anyone could call me 706.825.1674 . Thanks in advance Don B.

The harness has the 4 gray plugs for the injectors, my question is on the harness on the left side has a blue plug. Diagram shows it to plug into cold start valve( brown) but the cold start valve I thought plugged into a harness and is under the pleuimn .The only way I could get the fuel pump to work was to put a jumper wire into the blue plug. Also what is the best electronic ignition, or is it best to stay with points?

Hey don- I would definitely recommend you stick with points.

Im sure someone here can tell you exactly whats going on but for now here are some pics from my 78 that may help.

I like the Pertronix 2 as your timing stays dead on once you set it. Points wear so your timing slowly goes off. Now I do keep a points set as a spare just in case and they have come in handy twice to help some poor bus that needed a set in 10 years since I installed the electronic ones.

Cold start injector plug should be bluish-green, same color as the 4 injectors. The brown plug goes to the thermo-time switch, mounted underneath the cold start injector. The thermo-time switch is what activates the cold start injector.

I also have a Pertronix 2.