GN125 Cafe Conversion LED Brake light Wiring

[Scatcat1994]

I have a 2001 GN125. Don't know what model.

It came with a manual saying GN125e but not 100% sure if that is correct.

I'm trying to fit this LED Brake light:

https://www.amazon.co.uk/TARAZON-Singal-Universal-Kawasaki-Triumph/dp/B07CKCBYSN/ref=sxts_sxwds-bia-wc-p13n1_0?cv_ct_cx=cafe%2Bracer%2Brear%2Blight%2Btube&dchild=1&keywords=cafe%2Bracer%2Brear%2Blight%2Btube&pd_rd_i=B07CKCBYSN&pd_rd_r=2c0989f5-a2fa-4542-8278-046beaa39107&pd_rd_w=bkEpQ&pd_rd_wg=ssIBc&pf_rd_p=e3a968a9-db34-4cb6-962f-ddcde7323cf7&pf_rd_r=5VXQJD875AJ86RD9X072&qid=1592152010&sr=1-1-91e9aa57-911e-4628-99b3-09163b7d9294&th=1

Im just trying to wire up the daytime/running light and the brake light as the turn signals arent UK MOT compliant.

My issue is this: None of the wiring diagrams in my Haynes Manuals correspond to my specific GN.

My brake light has 3 wires: A brown, a white and a black/white wire.

I have tried a variety of combinations but I can only get the brake lights to stay permanently on.

Any advice?

Apologies for the essay, cheers,

-Scott

[Nobby the Bastard]

You need a multimeter for this but....


The three wires are earth, power for the rear and power to the brake.

The black and white is probably the earth so# with the ignition off and the positive lead off the battery, check for continuity between that and the battery negative. There should be no measurable resistance.

If not the black a d white, try the two others.

You've now found the earth.

Now reconnect the battery positive and turn on the lights. With your multimeter set to 20v dc check between the newly identified earth and the other two wires in turn.

The one that shows as 12 v is the one for the rear.

The other wire is for the brake light.


Finally, please dont show us the fucking abortion of a bike your created be cause if you cant even work out the wiring for a rear light it's going to be a hanging piece.of shit and I'll just get annoyed again. It's been a good day and I don't want it ruined by seeing another perfectly serviceable bike written off.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[stinkwheel]

Before you drive yourself insane, make sure one or both of the brake light switches aren't stuck on.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Robby]

The always on bit is probably the tail light. It should just get brighter for the brake light.

Of course, it's a shit LED light so you might only notice the change in brightness if you look really carefully at night. Same goes for the car following you when you start braking.