Aftermarket turn signals with OEM LED - Yamaha Star Stryker Motorcycle Forum
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Old 04-20-2017, 03:42 PM   #1 (permalink)
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Default Aftermarket turn signals with OEM LED

Hi folks,

I've got some issue with my bike.

The facts:


I've got the 2016 model with OEM led turn signals and want to install some 3in1 aftermarket turn signals.
(They got 4 wires: taillight, brakelight, turn signals, 1 shared ground line for all. Might be important later)

The new turn signals are 12V/1.5W. The factory LED turn signals have 6-9V/1.4W written on them.

The bike has no flasher relay, but instead a flasher controll unit, which is a total black box for me.

The issue:


So the issue is the following:
If I connect the aftermarket turn signals to the control unit and turn them on, they will flash up for a fraction of a second and then turn off again.

Now I thought this is caused by the low voltage of the OEM control unit.
So I got some 5V relays which I connected to the controll unit, so the controll unit will close the relays instead of operating the new turn signals.
If the relay is closed, it will forward 12V from the tail light to the turn signals.

But: it changed absolutely nothing. The turn signals still light up for a moment, then turn off again.
Edit: the reason why this happened is, that there the current required to operate the relay was pretty low, so there was not enough load on the control unit. Artificially increasing the drawn current with a 27ohm resistor parallel to the relay fixed this issue.

Low & Mean apparently has some "stepz relays" to fix this issue, but they wanna charge me $99 for shipping.
http://lowandmean.com/product/2015-and-newer/

Also, I'd like to understand what the actual problem is...

Anyone got an idea whats going on there?

Kind regards

Cornerback

Last edited by Cornerback; 05-10-2017 at 06:09 PM.
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Old 04-20-2017, 04:36 PM   #2 (permalink)
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sucks right? same issue for me with the 2015. I ended up with two relays from L&M that came with the bottom triple tree lightbar. One was the steperz relay and the other came from streetglow (it was a dual element relay) AND I still had to hook them up to a constant power source for running light functionality but in the end it does work (and is an awful mess of wires). I ended up wiring in my fork wrap around turn signals and it all continued to work too.

edit - that annoying flasher control unit confused the **** out of me when I first got in there expecting to find a relay in its place , made for a much longer and more arduous process
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Old 04-20-2017, 04:47 PM   #3 (permalink)
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Quote:
Originally Posted by Maademperor View Post
sucks right? same issue for me with the 2015. I ended up with two relays from L&M that came with the bottom triple tree lightbar. One was the steperz relay and the other came from streetglow (it was a dual element relay) AND I still had to hook them up to a constant power source for running light functionality but in the end it does work (and is an awful mess of wires). I ended up wiring in my fork wrap around turn signals and it all continued to work too.

edit - that annoying flasher control unit confused the **** out of me when I first got in there expecting to find a relay in its place , made for a much longer and more arduous process
How does the Stepz relay work? hook the relay to the oem turn signal wires and also to a constant power source and the plus of the new turn signal?
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Old 04-20-2017, 08:37 PM   #4 (permalink)
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Quote:
Originally Posted by Cornerback View Post
How does the Stepz relay work? hook the relay to the oem turn signal wires and also to a constant power source and the plus of the new turn signal?
yup, pretty sure that was it
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Old 04-21-2017, 08:49 AM   #5 (permalink)
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Okay. Any idea what they are using to fix this? Or why this even happens?
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Old 05-10-2017, 04:37 PM   #6 (permalink)
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I actually got it running now

I just created my own relays for each turn signal:
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Old 05-10-2017, 07:31 PM   #7 (permalink)
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I bet if you were to put a few sets of those relays together some people here would be happy to buy them from you.
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Old 05-10-2017, 09:21 PM   #8 (permalink)
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I hate electric trouble shooting
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Old 05-11-2017, 02:43 AM   #9 (permalink)
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Originally Posted by mazilla View Post
I bet if you were to put a few sets of those relays together some people here would be happy to buy them from you.
Shipping costs from Germany are probably not worth it

The price for the parts is <$2 per relay
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Old 05-11-2017, 05:42 AM   #10 (permalink)
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I would pay for shipping from Germany... to France

I'll be changing my lignts in a few weeks, maybe I'll contact you for some advice then, if you're ok with it !
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