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Old October 18th, 2023, 12:10 PM   #4
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Starter-solenoid is in proper location, under cross-bar that supports rear of petrol tank.

Does your headlight turn on with key ON, or only after you've cranked engine and it's running? PO may have bypassed Diode B to make headlights turn on with key.

Ok, if all 4 winkers work properly, then there may be wiring problem after signal switch. Note there are TWO T-junctions after winker signal leaves switch. First splits signal to front & rear winkers. Second splits signal between front winkers and clock's signal indicator. We'll test 2nd junction to make sure signals are split properly.



2. trace L/R winker wires out of signal-switch to 2nd T-junction. Undo tape here to find 3-way crimp for each side. Are all 3-wires connected?

- set signal-switch to LEFT, measure voltage at grn wire junction, does meter show blinking signal?
- set signal-switch to RIGHT, measure voltage at gry wire junction, does meter show blinking signal?

3. trace L/R winker wires from 2nd T-junction to clocks, nothing broken? Remove indicator bulb.

- set signal-switch to LEFT, measure voltage at grn wire at bulb-socket, does meter show blinking signal?
- set signal-switch to RIGHT, measure voltage at gry wire bulb-socket, does meter show blinking signal?

You may notice there's no ground for indicator bulb. It goes through other side's bulb for ground. Do you have LED winkers in front? It may be problem since higher resistance of LED may lower current-flow too much to light up indicator bulb.

If you get blinking signal at each grn & gry wire at bulb socket, then that's issue. Look up "indicator diode" mod to add 3rd-wire to indicator bulb for dedicated ground. Or put OEM incandescent winker bulbs back in front and indicator will work properly again.

Last futzed with by DannoXYZ; October 19th, 2023 at 11:54 AM.
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