LED's and Flash rate - Wrist Twisters
 
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post #1 of 20 Old 10-22-2014, 05:43 AM Thread Starter
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LED's and Flash rate

Now that the weather is getting cool I've started wearing my heated gear on my morning commute and I've noticed my LED headlight flashing when I'm idling and using the blinkers. My thoughts are to replace my turn signals with LED's to reduce the load on the system. One thing I'm not sure about though is will I need a load equalizer if I swap my blinkers over to LED, due to the fact that the system was design for use with incandescent bulbs. Has anyone had issues after swapping their entire system, blinkers and headlight, over to LEDs?
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post #2 of 20 Old 10-22-2014, 06:48 AM
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Turn signals will blink faster when you switch to LEDs. I swapped out the stock relay for this and it works great:
https://www.superbrightleds.com/more...c-flasher/787/
Cheapest option that I could find, too.

I don't think that reducing your electric load by replacing your turn signals is going to do it though. If your goal is to keep consistent voltage at the headlamp I would run a dedicated power cable and possibly ground. How much does your LED pull?

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post #3 of 20 Old 10-22-2014, 07:45 AM Thread Starter
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About 2.5 amps @ 12v

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post #4 of 20 Old 10-22-2014, 08:18 AM
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I believe the stock 919 bulb is 55/60w which is significantly more than what your light is using. I would guess that it's a problem of voltage regulation which can be checked easily by wiring it directly to the battery or the main relay.

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post #5 of 20 Old 10-22-2014, 08:27 AM Thread Starter
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I wonder if a load equalizer between the switch and headlight would correct it?

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post #6 of 20 Old 10-22-2014, 09:55 AM
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If you were to place a volt meter on the headlight connectors (while plugged in and on), you may see a fluctuation in voltage. I'm not sure what the 919's voltage regulator's specs are but you may want to confirm this and possibly look into a new regulator.

http://m.ebay.com/itm/02-07-Honda-CB...-/360817784596

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post #7 of 20 Old 10-22-2014, 10:27 AM Thread Starter
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From what I gather that is the issue. The LED units require their full draw all the time, and if the voltage drops even slightly they just turn off. I'm not sure if a new regulator would help because they were design to be used on the OEM system where the voltage can vary within a certain range and the bulbs will still function properly.

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post #8 of 20 Old 10-22-2014, 12:56 PM
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Go to autozone and get yourself an E34 LED flasher module if you do not mind a little DIY connector cutting and solder or crimp on the new female spade connectors. Once you do that the LED blinkers will flash like normal.

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post #9 of 20 Old 10-22-2014, 01:30 PM
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If i understand correctly? It's the flashing of the LED Headlight that you are talking about. In which case, isn't desirable.

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post #10 of 20 Old 10-22-2014, 03:00 PM Thread Starter
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Quote:
Originally Posted by ariannasdaddy View Post
If i understand correctly? It's the flashing of the LED Headlight that you are talking about. In which case, isn't desirable.
Yes. The headlight flashes when the system is under a good deal of load. i.e. Heated gear and blinkers going while the 9er is at idle.

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post #11 of 20 Old 10-22-2014, 05:37 PM
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How is your power plug wired into the bike? I missed that part. Still don't think that turn signals are your problem.

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post #12 of 20 Old 10-22-2014, 06:24 PM
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I just went out and tried it since I just installed an LED headlight. I plugged my 90W heated jacket liner in and turned it on. Turned the ignition switch on, and also the turn signals (non-LED type) and the headlight was steady with no flashing or flicker. Started the bike and repeated, same thing...no flashing.

Seems like maybe you have an issue with your electrical system. Maybe your battery is getting weak?

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post #13 of 20 Old 10-22-2014, 08:10 PM
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With every bike that I have ever owned. Every time my head light begin to flicker it was time to replace the rectifier. In some cases I had to be the stator as well. In most cases it was just the rectifier and even then sometimes when buying the cheap Chinese ones they would burn out in just a few months. EBay or Amazon was always a great source and the shipping was pretty quick. Checking the voltage at the battery is good too because when my rectifier went one time since the voltage was not constant if pushed too many amps back to the battery and nearly blew up the battery. I think the rule of thumb was 14 or more amps at the battery bad rectifier, less than 12 bad stator. It's been a while I haven't had any issues with my 919 so I definitely ask around a bit more.

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post #14 of 20 Old 10-22-2014, 08:12 PM
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I replaced the headlight with a cree led and all my blinkers with LEDs. I haven't had any issues with flickering headlight with the signals on. The only adjustment I had was to buy that universal flasher relay took all of 30 seconds to swap out the old flasher and now everything blinks at the proper rate. I chose that option rather than soldering on individual resistors or buying an automotive one and converting it.

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post #15 of 20 Old 10-22-2014, 08:18 PM
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I didn't think about it at the time but checking the rectifier might actually be a really good idea. Can't recall the process but I know its covered in the manual. I think I still got a digital copy and can put it in my dropbox if somoene needs it.

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post #16 of 20 Old 10-22-2014, 11:09 PM
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Manual is already in the Helpful Topics section in our shared Dropbox folder there, just FYI...

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post #17 of 20 Old 10-23-2014, 02:13 AM Thread Starter
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I'll look up the process when I have time. I'm almost sure I've heard others with the JW Speaker headlight having similar issues. I wonder if it could just be the head light.

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post #18 of 20 Old 10-23-2014, 04:22 AM Thread Starter
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So I tried to look up the prices for the stator and regulator/rectifier on partzilla, but couldn't find the rectifier. Has anyone used these guys for part before?HONDA CB900F / CB919 Hornet, 02-07 - Buy the BEST Stator Regulator/Rectifier CDI - ElectroSport I plan on trying to trouble shoot the rectifier and stator this weekend if I can, I just wanted to find a good source for the parts in the event either need to be replaced.

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post #19 of 20 Old 10-23-2014, 04:54 AM
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Anazon has them for 29.99 free shipping. It's a Chinese one. I personally have used several Chinese rectifiers and they can be decent. It's just that damn price is so good...

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post #20 of 20 Old 10-25-2014, 06:55 AM
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I have the same issue only under idle with heated gear on max. In the winter I'll run a dedicated line / relay to fix the problem. Too much voltage drop through all of the stock wires on the headlight circuit

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