So I’m now about ready to start to build my stand-alone 6 pin harness for the CDI. Thought I’d post this in case it might help anyone and to ask a question.
I now have the 69-71 only Bosch 0 227 990 001 Tach Adapter/RPM Sensor/Intermediate Unit/Ballast Unit, as well as the six pin plug connector, which can be found by searching AMP 180904. I got the connector from Digikey Canada for $1.05 +$8 shipping.
The other connecter for the green distributor wire is on the way. It’s the same connector as was used in many fuel injection systems- an EV1 fuel injection connector. I bought a Bosch one, part number 1287013003 for $17 shipped, but there are much cheaper ones available. Have not received it yet, but I’m told it’s the one I need. All that said I can now start to build my CDI harness- I could have bought one for $289USD plus shipping and duty to Canada, but what’s the fun in that...
Im a visual guy, so after searching through a few posts here, I drew up my own diagram.
Pretty clear so far, but I do have a question - How do I wire in the tach adapter? I found this diagram-
So, I have to run a wire (A)to ground and (B) straight? to the to the positive (15) side of the coil, but (C) the black and purple wire to tach- how does that run with the black and purple wire from the 6 pin CDI unit? Is it just in series from the CDI, to the tach adaptor, and then onwards to the tach? Does the order matter?
Thanks again for the help and support.