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LED blinker question

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Old May 23, 2024 | 05:02 PM
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LED blinker question

Hi guys, I'm trying to replace my small old blinkers on my 02. I did have to purchase a relay to get them to work at all. They don't lite up across the entire "arrow" when wired to the bike. They do work correctly when I touch the wires to a spare battery I have hanging around. The new relay only has 2 pins while my stock relay had 3. Not sure if that has anything to do with it. Any suggestions would be greatly appreciated.


Last edited by kelpike; May 23, 2024 at 05:04 PM. Reason: Spelling
Old May 24, 2024 | 03:31 PM
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It could be a bad / weak ground. If there is corrosion or some broken strands in either power or ground wire.

why did you get a different relay rather than getting an OEM style?
Old May 24, 2024 | 06:19 PM
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Originally Posted by Squid
It could be a bad / weak ground. If there is corrosion or some broken strands in either power or ground wire.

why did you get a different relay rather than getting an OEM style?
The LED blinkers would barely light up with my stock relay.. and they were flashing kind of fast and sporadic.
Old May 27, 2024 | 12:44 PM
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You need a low draw electronic relay for LED turn signals and running lights.The reason you need three wires is because the front is both a turn signal and a running light

Sometimes a 2 wire relay can be used, but you may have to change the pin positions to match the O.EM relay but again you're missing a pin wire if you want front RL

I replaced every incondescent bulb on my bike including the headlight with LED and have had no problems.Unless you provide more information I can't help you farther than what I have

Have you gone to the turn signal manufacturer's website and looked for instructions LO.L
Old May 27, 2024 | 01:24 PM
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The rears are turn signals only.
How many wires are the new LED signal lights? Unclear how you connected a two wire relay. As stated, stock is three wire.
Have you tried connecting both lights at the same time? The left light shares its ground with the right.
Old May 28, 2024 | 04:42 PM
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These are rear blinkers but they do have the running lights built in. I have not found any website, these are cheap Amazon blinkers. I searched a few sites for blinkers and most seemed to be very similar to the cheap Amazon ones.
Originally Posted by skokievtr
You need a low draw electronic relay for LED turn signals and running lights.The reason you need three wires is because the front is both a turn signal and a running light

Sometimes a 2 wire relay can be used, but you may have to change the pin positions to match the O.EM relay but again you're missing a pin wire if you want front RL

I replaced every incondescent bulb on my bike including the headlight with LED and have had no problems.Unless you provide more information I can't help you farther than what I have

Have you gone to the turn signal manufacturer's website and looked for instructions LO.L
Old May 28, 2024 | 04:45 PM
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I did have one bad wire that I have to mess with. I did not see any OEM style that would run the LED blinkers.
Originally Posted by Squid
It could be a bad / weak ground. If there is corrosion or some broken strands in either power or ground wire.

why did you get a different relay rather than getting an OEM style?
Old May 28, 2024 | 04:50 PM
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These were listed as rears with running or maybe brake light. The new relay just plugged right in where the OEM 3 wire was. I have not connected both at the same time. I did try each one which worked the same way, but not at the same time. I will try connecting both of them.
Originally Posted by xeris
The rears are turn signals only.
How many wires are the new LED signal lights? Unclear how you connected a two wire relay. As stated, stock is three wire.
Have you tried connecting both lights at the same time? The left light shares its ground with the right.
Old May 28, 2024 | 07:02 PM
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Originally Posted by xeris
The rears are turn signals only.
How many wires are the new LED signal lights? Unclear how you connected a two wire relay. As stated, stock is three wire.
Have you tried connecting both lights at the same time? The left light shares its ground with the right.
NOT ON MY FASTEST RED ANYMORE, THEYR'E TS &





























RL

THE TAIL/BRAKE LIGHT IS ALSO LED









LED HEADLIGHT IS A GAME CHANGER
Old Jun 2, 2024 | 10:22 AM
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Originally Posted by skokievtr
NOT ON MY FASTEST RED ANYMORE, THEYR'E TS &





























RL

THE TAIL/BRAKE LIGHT IS ALSO LED









LED HEADLIGHT IS A GAME CHANGER
Nice job on your Hawk. And on another note, seeing the pics of yours, makes me realize that I need to spend some time cleaning mine up.
Old Jun 2, 2024 | 10:42 AM
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I am going to return the first relay and order this 3 prong. I hope it will solve my problem. The 3rd wire on the blinkers powers the red running lights that are in the blinkers. Is there any reason that I cannot connect the red wires from my new blinkers to the license plate wire instead of the tail lights.
Amazon Amazon
Old Jun 2, 2024 | 05:00 PM
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That Amazon relay is correct. Not sure if that will solve your problem. Are the new signal lights 2 or 3 wire?

Old Jun 2, 2024 | 08:37 PM
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The new lights are 3 wire.
Originally Posted by xeris
That Amazon relay is correct. Not sure if that will solve your problem. Are the new signal lights 2 or 3 wire?
Old Jun 3, 2024 | 06:56 AM
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The stock rear signal lights are two wire. One of the positive wires on the new is running lights, the other is the turns. The third is the ground. The turn wire will go to the stock positive turn. The other, the running light positive, will need to be tapped into the tail light positive. You will most likely need a diode on the tap wire because without the diode the instrument cluster and matbe other lights will blink when the turn switch is on.
I could be wrong, as I often am, so don't blame me if your bike burns up.
Old Jun 3, 2024 | 10:43 AM
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Why Tap into the instruments
There are all sorts of Circuits Up there like turn signals?

Old Jun 3, 2024 | 03:42 PM
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Originally Posted by skokievtr
Why Tap into the instruments
There are all sorts of Circuits Up there like turn signals?
Hmm. Didn't suggest that.

Old Jun 3, 2024 | 07:54 PM
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Who didn't

Back in 2012 I had at least 7 relays plus for the Cyclops LED headlight with dual relays. Add redundant grounds, and any ignition on 12v input will do for a relay.

I replaced 3 or 4 relays with a FZ-1 Fuzeblock...

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Old Jun 18, 2024 | 12:12 PM
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Not uncommon

Forum noob here, but not a noob to forums or bikes or bike electrics. I at one time made integrated LED taillights for the Yamaha R1 waaaay back in the day and so had to deal with customers with incandescent signals mixed with LED, or all LED and trying to use the stock turn signal flasher relay or an aftermarket flasher relay.

The reason stock turn signal flasher relays don't work well with LED signals is because LED signals generally draw less current than the stock signals they are replacing. The reason this is a problem is because DOT regulation requires OEMs to incorporate some sort of way of alerting the operator if a signal burns out. The simplest way to accomplish this is to make the stock turn signal flash rate current-dependent. This way, if an indicator burns out, the current draw on that 'side' (right or left) drops, which causes the flasher rate to increase; thus alerting the operator. When LED signals are installed, they draw so little current, the flash rate can increase to the point that it just looks like a dim glow, rather than a blink.

My recommendation was always to just replace the stock flasher relay with an aftermarket flasher relay that has a non-current dependent flash rate. Problem solved.

Another alternative if one's heart is set on staying with the stock flasher relay is to fool the stock relay into thinking the stock incandescent bulbs are still in place. This can be done by wiring-in shunt 'ballast' resistors, which draw current and bring the current level back up to the current level the stock flasher relay is expecting. The resistors that I always recommended were 8-ohm 25-watt resistors; one for each incandescent blinker bulb being replaced/eliminated. These resistors are to be wired ACROSS each LED blinker; NOT in line.

You're welcome.
Sam
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