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Igntion coil schematic.

Posted: Mon Aug 07, 2023 5:04 pm
by willyb99
Hello!

I will have in my possession at some point a 1979 CBX. It seems the wiring harness from whatever connector (the 6 way white connector) to the coils is quite toasted. I thought I saw a "diagram" of this harness and would like to make my own replacement. Has anyone here done that and if so do you have any link and/or information that would help? Thank you in advance!!

Re: Igntion coil schematic.

Posted: Mon Aug 07, 2023 7:15 pm
by NobleHops
The wiring diagram in the FSM has what you need most of all. Find that here: www.cbxclub.com/manuals

Re: Igntion coil schematic.

Posted: Tue Aug 08, 2023 2:59 am
by 512tr
Based on your pictures in another thread, it looks like the wires have been burned, shorted, or something. There's a good chance your igniters are "fried" too...But here's the wiring diagram.
Skjermbilde 2023-08-08 061247.png
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Re: Igntion coil schematic.

Posted: Tue Aug 08, 2023 8:07 am
by daves79x
That is a separately available harness that I'm sure you can find very cheaply. I guess I don't have to tell you, others have, that you are in for probably too much work for what you are starting with, especially if you have no garage to work in. We'll be happy to help you along as we can, many of us are paralleled on Facebook and following you there as well.

Dave

Re: Igntion coil schematic.

Posted: Sun Aug 13, 2023 4:50 pm
by herdygerdy
Here's a link to the family of 1/4" Sumitomo lock type connectors you will need.
http://www.cycleterminal.com/250-connectors.html#SC250
The connector mounted on the side of the airbox has only 4 wires, 1x +12v that loops across the back of all three coils and 1x each is the output from the igniter switching circuit that comes from the ignitors.
There is a 6 wire connector that comes from the pulsers though.
Never seen ignition wiring fried, but the red connectors from the alternator and regulator far too many times.
PM me if you want the schematics for the wiring harness that goes from back of coils to the 4 wire connector. It plugs into the 4x wire connector that comes up from the bank of 3x ignitors.
Keep us posted.