[Naked Pilot]

I have a 2007 US import and it has a flashing brake light. I cannot see a modulator is fitted. So is this standard? Can I remove the flashing brake light to comply with UK regulations?

 

[RaYzerman]

There must be a modulator. Remove left side panel and under the seat tray there is a 6-way connector (only 5 wires) where the rear lighting harness is connected to the main harness. Sometimes that is the favourite spot to connect aux. rear lighting. Blue wire is tail light, yellow is brake light.

 

[Naked Pilot]

Had all the covers off. Cable comes straight from the rear cluster and plugs in. No modulator in sight. Loom is still nicely taped right up to the socket, so no modulator fitted before the socket. Wondering if there is a modulating bulb that I’m not aware of. Or does the US version have a different software that makes brake light flash?

 

[Rumblestrip]

Had all the covers off. Cable comes straight from the rear cluster and plugs in. No modulator in sight. Loom is still nicely taped right up to the socket, so no modulator fitted before the socket. Wondering if there is a modulating bulb that I'm not aware of. Or does the US version have a different software that makes brake light flash?

Negative, it is not a feature on the US models for flashing brake lights.
There has to be an aftermarket add on by the previous owner.
Keep diggin'....

 

[RaYzerman]

Modulating bulbs are rare, FJR has two brake light bulbs but for them to flash equally at the same time, doubt you have them. Follow the harness to the tail along the left subframe rail, there may be something tapped in there.... maybe right in the tail.

 

[passx]

Personally I would change the bulbs before I got to deep into it. I use(d) the superbrite leds and for whatever reason seemed to flash in unison, just lucky I guess. But I’d replace the bulbs . You can pull the bulb harness’s out and just leave them out so you can see them easily to see the results.

 

[COGnosticator]

I put brake lights on my 2013 that modulate when activated. No external modulator needed. Just change them out to regular brake lights, 1157 I think

 

[rbentnail]

I think the guys may be on to something. The basic question to help here would be:

are your flashing brake lights incandescent or LED? If LED, they are aftermarket.

 

[Dlounsbury]

Check the bulbs. I added some LED bulbs that modulate before staying on solid for brake lights. https://www.amazon.com/gp/product/B07VB1SVRQ/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

Make a difference at stops to be seen.

 

[RaYzerman]

Alrighty then, I didn't know there was so many strobing bulbs out there...

 

[Way8lifter]

There must be a modulator. Remove left side panel and under the seat tray there is a 6-way connector (only 5 wires) where the rear lighting harness is connected to the main harness. Sometimes that is the favourite spot to connect aux. rear lighting. Blue wire is tail light, yellow is brake light.

That is where I put my modulator

 

[Naked Pilot]

Well, Thanks guys for all your help.
Seems that my FJR had 'incandescent modulating bulbs' fitted to the rear lights. (I'd never heard of them till now)
Somehow they worked in perfect unison.
So after taking the side of the bike apart first (silly boy lol) and definitely finding NO modulator anywhere, I took a bulb out and put power to it.
And guess what? It started flashing when both the filaments were powered at the same time.
New bulbs coming today
Lesson for today.... Check the easy/obvious options first. lmao
Thanks again all

 

[rbentnail]

Who-da thunk it :grin::grin:? I think we all just learned something new.

 

[passx]

Naked, I would also suggest you add your general location and bike model/year to your profile, it’ll help us help you on any future problems, just a suggestion.