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Old 07-02-2012, 09:00 PM   #1
KLRiderKTMracer104
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Default LED Turn Signals

Do you have to do anything special to install LED turn signals. My bike was tipped over a long time ago and broke the rear turn signal. Well you can get 4 LED ones on ebay for cheaper than the stock one. I actually prefer the LED ones look wise but wasn't sure if they would work or if there was something easy I could do to make them work.

Thanks guys I have been asking lots of questions lately.
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Old 07-03-2012, 03:41 PM   #2
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Default Re: LED Turn Signals

im actaully in the process of doing this myself. ive found, just as i expected, that there isnt enough draw to make the flasher flash. im trying to find out if i should solder in a resistor, or look for a new flasher. ill let you know if i find anything out before someone else who knows more chimes in.
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Old 07-03-2012, 04:37 PM   #3
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Default Re: LED Turn Signals

I did this mod on my KLR a while ago. I changed out all the lamps (except the headlight) with LEDs. I bought everything from www.superbrightleds.com
The easiest solution is to go there and search "LF1-S-FLAT: Universal Motorcycle Flasher" Then install that in place of the stock location. It'll work with any type of lamp/bulb.
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Old 07-03-2012, 05:35 PM   #4
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Default Re: LED Turn Signals

So are you supposed to use an LF1 on each light? Is it installed inside the light housing?
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Old 07-04-2012, 02:29 AM   #5
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Default Re: LED Turn Signals

Just one is required and it will be installed in place of the oem unit. It replaces the module which regulates the flashing of the oem incandescent lights. The LF1... module is able to operate normally across a broader range of voltage and amperages than the oem unit is capable of operating with a "normal" flash rate. With LED turn signals, the voltage isn't significantly different, if different at all, but much less amperage is required to operate the LED'S compared to the incandescent bulbs, resulting in the apparent malfunction when using the stock flasher module with LED turn signals.

The flasher relay is located beneath the fuel tank of your KLR 250 along the top tube of the frame among several other electronic modules such as the CDI module and several electrical connectors. The parts fiche on sites like bike bandit offer a better diagram than my copy of the service manual has to offer, or you can take off the tank and hit the turn signal switch and listen/feel got which of the small plastic plug like modules is the turn signal relay. It should click each cycle and a finger resting on the module will detect the click too.
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Last edited by kidflyr; 07-04-2012 at 02:42 AM.
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Old 01-07-2013, 11:49 AM   #6
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Default Re: LED Turn Signals

I did some major off roading this weekend, and smashed the rear turn signal.
Now ordering the LF1-S-FLAT and some led rear signals.
I will reply when working.
Thanks,
JB
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Old 05-01-2013, 10:04 PM   #7
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Default Re: LED Turn Signals

How did this LF1-S-Flat work out? I just replaced all four old turn signals with LED and purcased a LED flash off ebay. Now all I get is all the lights on at once. I see the LF1-S-Flat is the soltuions I believe to my problem but what do you do about the turn indicator bulb?
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Old 05-01-2013, 10:08 PM   #8
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Default Re: LED Turn Signals

I've run these for years.

https://www.electrosport.com/led-turn...advantage.html

They do not break, and they are very nice, vs the crap eBay LED signals I tried before
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Old 05-02-2013, 02:10 PM   #9
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Default Re: LED Turn Signals

I've been seriously considering a LED headlight recently. $200 for a 7" round dual beam headlight from trucklite on ebay. It's been done before as I've discovered from a few Google searches and I really like the look. I have the 24v version LED headlights on my M35a2 and I absolutely love them for lighting up the road. DOT approved too.
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Old 05-04-2013, 03:33 AM   #10
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Default Re: LED Turn Signals

Was the LF1-S the answer? Getting ready to order 4 led signals. Love to hear from any of you guys that have had success with this.


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Old 11-03-2016, 02:24 AM   #11
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Default Re: LED Turn Signals

Can anyone tell me exactly where the turn signal rely is located on a 15? Thanks
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Old 09-22-2017, 09:39 PM   #12
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Default Re: LED Turn Signals

I'm attempting the LED turn signal mod. Picked up four BAU15S LED stacks and the LF-S-FLAT relay. The OEM relay is located under the nose on 2nd Gens, towards the left side under the dash. Swapped out bulbs and the relay and . . . All four signals blink regardless of which direction I push the turn switch. Gave myself a headache trying to follow a wiring diagram, can't figure out how this is even happening.

I'm happier cracking the case, electrical has too many gremlins. Any ideas? Anyone?

At least it's a 685 now. Might be too fast for LED lights . . .
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Old 09-23-2017, 04:36 PM   #13
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Default Re: LED Turn Signals

I swapped out my rear turn signals with LED but left the front stock incandescent. Found out that the remaining front signals provided enough resistance where I didn't need to swap out the flasher/relay..
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Old 09-23-2017, 07:12 PM   #14
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Default Re: LED Turn Signals

Through some experimenting I ended up doing the same thing. But since the nose was off I swapped the relay. LED in front, incandescent in the back and all functions normally. Still can't figure out why going all LED makes the turn signal into hazard lights.
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Old 10-13-2017, 06:57 AM   #15
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Default Re: LED Turn Signals

Am doing the mod at the moment.
It's the dual role of the indicator lamp on the dash. It actually was designed to indicate faulty bulbs as well and joins the two sides electrically. Remove the bulb and no more hazard lights. Still looking at a work around that will need a diode I expect
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Old 10-13-2017, 05:11 PM   #16
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Default Re: LED Turn Signals

I'm no guru, but I think a properly oriented diode on each of the dash indicator wires will allow it to function and prevent the 4-way action. I haven't bothered yet, but something like that might work. I can see my front signals from the saddle so I'm just rollin' without the dash indicator bulb.

Last edited by Jakwriter; 10-13-2017 at 05:12 PM.
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Old 10-14-2017, 04:56 PM   #17
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Default Re: LED Turn Signals

Got it all working with a couple of 70 cent diodes from jaycar the local electronics store. You need something rated about half an amp and 20v.

Cut both leads to the turn signal repeater bulb
Attach a diode to each of the leads going back to bike that you just cut
The diode should have the bar marking away from the wire

Twist the two diode tails together (marking end) and connect to one lead of the bulb and connect the other lead of the bulb to a good ground
Replace the stock flasher unit with an LED compatible one of ebay
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