Author Topic: Lighting Pulsation  (Read 259 times)

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Offline Redbarron

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Lighting Pulsation
« on: October 19, 2018, 08:59:23 am »
Hello Everyone:

How is everyone doing? I hope well!!

Okay 2000 Connie my lights have been pulsing for over a year now seems worse when cold.

Old standard battery but cranks over fine cables are clean and tight, I even had the alternator checked okay and tried a spare for s&g's

I had to bypass the headlight relay because it failed I cut the blue wire at the j box and tied it to brown. Both my low and high beam are off of relays anyway.

My j-box was rebuilt a couple years ago and I replaced the 8 pin connector with a new one.

I'm thinking of performing a capacitance test on the battery and doing a voltage drop test between the white/w red wire and the brown.

If the ignition switch I have taken apart and cleaned and lubed by the way has an intermittent high resistants issue this should show it.

Also thinking about just bypassing the the brown wire to the battery hot while the bike is running.

Any thoughts or suggestions.

Thank You Signed RedBarron
Never Allow the Radicall Views of the Few to Infringe on the Constitutional Rights of the Many

Offline Daytona_Mike

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Re: Lighting Pulsation
« Reply #1 on: October 19, 2018, 02:22:49 pm »
and you idle speed is 1100 RPM?  You headlight is a standard bulb?  Does it stop pulsing when you  rev the engine?
Normally aspirated engines have perpetual turbo lag
2000 Red C10 1052 kit
2008  C14 Silver Dammit Full AreaP- Flies are put back in SISF_Flash
2011  KLR650   688 piston ported and polished
2011  KTM 530    This thing is FUN!!

Offline connie_rider

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Re: Lighting Pulsation
« Reply #2 on: October 19, 2018, 02:52:10 pm »
I think this is common.
I've noticed that my C-10 does the same at idle.
Pulsing goes away as I increase RPM's.

Ride safe, Ted

14 Connie (Traveler II) / 03 Connie (Buddy)
Gone but not forgotten; 87 and 00 Connies..

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Offline Daytona_Mike

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Re: Lighting Pulsation
« Reply #3 on: October 19, 2018, 03:10:08 pm »
Yes, very common. Mine did it too.
Normally aspirated engines have perpetual turbo lag
2000 Red C10 1052 kit
2008  C14 Silver Dammit Full AreaP- Flies are put back in SISF_Flash
2011  KLR650   688 piston ported and polished
2011  KTM 530    This thing is FUN!!

Offline Brooke_Benfield_OR

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Re: Lighting Pulsation
« Reply #4 on: October 19, 2018, 05:16:21 pm »
You say your "lights" have been pulsing and I guess that means your headlights.

Would your neutral light also be pulsing at idle?

I ask because years back there was mention of a connector under the gas tank close to the ignition coils (either it or the wire coming to it is colored brown) that needs to be disconnected/reconnected a few times and it seemed to fix that. Easy to try....
Brooke Benfield  2013 FJR1300  COG #2185

Offline connie_rider

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Re: Lighting Pulsation
« Reply #5 on: October 19, 2018, 09:30:51 pm »
Actually, the neutral light is what I noticed the most.
Thanks, worth a look next time I'm working under the tank.

Ride safe, Ted
14 Connie (Traveler II) / 03 Connie (Buddy)
Gone but not forgotten; 87 and 00 Connies..

If your not already a COGger, "consider becoming one".
Help us make "OtP" possible again!!

Offline MAN OF BLUES

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Re: Lighting Pulsation
« Reply #6 on: October 19, 2018, 11:11:41 pm »
You say your "lights" have been pulsing and I guess that means your headlights.

Would your neutral light also be pulsing at idle?

I ask because years back there was mention of a connector under the gas tank close to the ignition coils (either it or the wire coming to it is colored brown) that needs to be disconnected/reconnected a few times and it seemed to fix that. Easy to try....

close
actually the one I note is the black/yel stripe one that attaches to the mounting bolt of the left coil to frame junction... remove it, scrub the ring lug, and frame with sandpaper and insure that the wire of the ring lug is not fraying or compromised and has broken strands..

I found this after major searching, when i built COGZilla, and used a set of Ninja gages, and the tach kept bouncing around in time with the ignition... when I snipped the end (it was very frayed, and had lots of broken strands) and crimped a new ring lug on, and cleaned the mating surface, all was cured...

30 YEARS OF KAW.....Rich R. (the other one..)  COG 5977  JUSTAMEMBAHNOW
and if you are gonna call me names... it's MR. Analdweeb if you please...

Offline Redbarron

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Re: Lighting Pulsation
« Reply #7 on: October 21, 2018, 11:18:21 pm »
Well I tested the Battery as well as the starting and charging system this morning from a cold dead start.

This is when it normally happens everything tested perfect.  The only thing I can think of is that ground side has an issue despite the ground modification and the leads at the coil are in good nick.

One would think that if this was a case of a weak pole or bad diode that the charging system test would reveal it.

I am going to jump out the ground at the headlamp direct to the battery - and see what happens! If their is no change then that eliminates the ground as the culprit .

Then it is back to the battery if little to no AC ripple voltage is detected on the DC side then it's a battery issue.

I was concerned that at certain points in the charging system test the voltage indicated a high of 15.33

The battery is an 8 year old sealed lead acid type so, it is not to far to say that one or more of the plates may be changing state of conductance while vibrating.

Just food for thought!!

Thanks Kids :beerchug:
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Offline RWulf

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Re: Lighting Pulsation
« Reply #8 on: October 22, 2018, 01:46:58 pm »
You may find considerable ripple. The battery is there to absorb the ripple.
I would start saving for a new battery.

Offline Bob H

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Re: Lighting Pulsation
« Reply #9 on: October 22, 2018, 05:24:06 pm »
You may find considerable ripple. The battery is there to absorb the ripple.
I would start saving for a new battery.

In my experience, all your symptoms point to need for a new battery, especially it's age!
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