LED Turn Signal Resistor Q - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 31 Old 07-11-2018, 10:54 AM Thread Starter
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LED Turn Signal Resistor Q

I know a lot of these kits come with 2 or 4 resistors for a set up to be placed near the bulb, but couldn't you just get away with 1? You only have 1 flasher relay that starts the circuit before the turn signal switch. Why not just use 1 in the circuit near the relay before it ever gets to the switch? Does that make sense?

I'm going to be trying it here in a week or so, but I was just wondering.

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post #2 of 31 Old 07-11-2018, 11:08 AM Thread Starter
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Nevermind. I realize the resistor would have to be after the switch or it would always be drawing current.

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post #3 of 31 Old 07-11-2018, 08:23 PM
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If you use a proper LED flasher you will not need the resistors. The resistors make the LED bulbs consume the same amount of power that incandescents do. The OEM flasher needs that load in order to work. An LED-ready flasher doesn't.

SuperBrightLEDs offer a plug 'n play flasher, as well as a non-polarized indicator bulb (so both sides don't flash at the same time). The flasher is the LF-S-1-FLT.

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post #4 of 31 Old 07-11-2018, 10:17 PM Thread Starter
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Do I have to change out the indicator bulb with this flasher? Does it matter between the flat connector and the bullet terminal connector version?

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post #5 of 31 Old 07-11-2018, 10:25 PM Thread Starter
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I just watched a video of one. That's amazing, I just ordered 3 of them for all my bikes so I can take out those resistors. Thanks a bunch. Here I was thinking my Gen1 was ahead of the wattage curve allowing me to get chargers, heated grips, aux lights, and maybe a heated jacket.

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post #6 of 31 Old 07-11-2018, 10:51 PM
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When you are installing LED turn signals you need to do something to prevent the LEDs from seeing a path to ground through the indicator light. If they see that path then they will have current running through them and will operate. The usual symptom is that when you flip the turn signal switch in either direction both the right and left sides will flash.

You can either install diodes in the indicator circuit (messy) or install a non-polarized 194 LED bulb in place of the incandescent. I haven't looked at all of the 194 bulbs, but I think they are all non-polarized. You can check the specs, like for this one. Down in the specs where it says "Polarity Sensitive: No" is what you would be looking for. Note that this bulb may not be the one you want, but be careful as some of the 194 have a bigger head than the hole in the KLRs instrument cluster. You can get those in, but it's a bit of a wiggle.

All of this is independent of the flasher.

Are you doing this on your 2005 or 2012? The LF-S-1-FLT is a plug 'n play for the Gen 2. For the Gen 1 you could get this one or this one. I don't see why they would not work but do your research. The bullet type would also work, but you'd need to provide the connection. Don't get the blue one; I've had bad luck with it.

All of the info on the 194 applies to the Gen 2. The Gen 1 takes a #24 bulb and I don't see a non-polarized one. Never did turn signals on a Gen 1 so I'm not sure what the answer is. Is there anything in your kit?

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post #7 of 31 Old 07-11-2018, 10:53 PM
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Sorry, I spent 30 minutes on the above, looking at various bulbs and such, and didn't see your post above mine.

Let us know how it works out.

Tom [email protected]

I lit a cigarette and dragged a smoking stand beside the chair. The minutes went by on tiptoe, with their fingers to their lips. -Philip Marlowe

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post #8 of 31 Old 07-12-2018, 12:40 AM
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FWIW, this is what I did that works nicely on my Gen1.

I use an EP35 (Generic Part Number) Electronic Flasher. Google or Amazon are your friends. They can be found for less than $4.

I then bought a used (eBay), what Kawasaki variously calls a "Diode Unit" or just "Diode" Kawasaki Part Number 49018-105. It's actually a Diode Trio that is used in the KLR's Starter Interlock circuit. Anyhow I wired that (see attached diagram) using an LED (SuperBrightLED.com Part Number 24-AHD) for the Flasher Indicator so that it would work as well. The LED Bulb is a plug and play thing and the "Diode Unit" tucks in very nicely on the backside of and between the Speedometer and Tachometer.
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Last edited by Bluehighways; 08-31-2018 at 01:18 AM.
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post #9 of 31 Old 07-12-2018, 08:05 AM
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An excellent solution.

Tom [email protected]

I lit a cigarette and dragged a smoking stand beside the chair. The minutes went by on tiptoe, with their fingers to their lips. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte


Sting like a butterfly.
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post #10 of 31 Old 07-12-2018, 11:29 AM
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In this day and age, WHY aren't LED's standard equipment? To me it would be a no brainer, especially for this type of bike that people like to kit out with heated grips, jacket liners and extra running lights to offset it all with low current drawing bulbs. These days LED's are getting cheaper each day and why all the manufacturers are still putting the same old 55W headlights and other high draw incandescents in bikes with limited capacity charging systems and small reserve batteries is a mystery to me.
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