Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: philward on April 22, 2018, 06:09:35 PM

Title: Electrical fault finding
Post by: philward on April 22, 2018, 06:09:35 PM
I'm currently testing the wiring on my CR rep while the paint set is away with the painter. I have made up a new harness to fit all the re-located electrical components. Its based on a new K6 harness but using new K2 switchgear (CR will have lights, indicators, digital speedo including idiot light plus narrow Electrex alternator and boyer ignition.coils). So far I've got lights, horn and brake light working but am struggling with indicators (LED). I have LED friendly relay (based on description when bought). So far nothing is happening at all when Left or Right switched. This is what I'm getting when testing
4 Wires from LH Switchgear - Orange and blue indicator wires, grey to relay and light green to horn (earth via switch body which I have as the horn works)
Relay - L (which is tested and is permanent Live) - E (which is tested and is permanently earthed) and B which has grey from switch (which tests as earth when Left or Right switched - and no earth when switch in the middle)
But no lights - never mind flashing
Any ideas?
Title: Re: Electrical fault finding
Post by: philward on April 22, 2018, 10:43:42 PM
Sorted - changed wires round on relay after google search - L is not for 'Live' but 'Load. Live feed goes to B (Battery) - Doah!
Title: Re: Electrical fault finding
Post by: mike the bike on April 22, 2018, 10:45:37 PM
Well done.  Sometimes a coffee and a hobnob is all it takes.
Title: Re: Electrical fault finding
Post by: philward on April 22, 2018, 10:57:15 PM
Absolutely Mike! Misus is more made up than me - I've been driving her mad stalking around and not listening to anything she has said for all today!
Title: Re: Electrical fault finding
Post by: MarkCR750 on April 23, 2018, 12:15:41 PM
Absolutely Mike! Misus is more made up than me - I've been driving her mad stalking around and not listening to anything she has said for all today!
It doesn’t take an electrical issue to cause the same scenario in my household Phil 🙂
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