Author Topic: Electrical fault finding  (Read 484 times)

Offline philward

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Electrical fault finding
« 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?
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline philward

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Re: Electrical fault finding
« Reply #1 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!
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline mike the bike

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Re: Electrical fault finding
« Reply #2 on: April 22, 2018, 10:45:37 PM »
Well done.  Sometimes a coffee and a hobnob is all it takes.
Where's that 10mm socket got to?

Offline philward

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Re: Electrical fault finding
« Reply #3 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!
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline MarkCR750

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Re: Electrical fault finding
« Reply #4 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 🙂
Suzuki GT250A (Nostalgia)
1977 K7 CR750 (lookalike, what of I’m not sure)
Ducati 900SS (Soul & Speed)
Ducati M900 Monster (Handling & character)
Thruxton 1200 (suits me)
James Captain 197 (pure adrenaline, i.e. no brakes!)
"Eff yir gitten awvestear yir gooin te farst"
Sir J.Stewart.

 

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