All lights flicker when either turn signals are on - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

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post #1 of 13 (permalink) Old 11-01-2013, 01:55 PM Thread Starter
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All lights flicker when either turn signals are on

New to this forum - wished I found this before i started working on the bike. Wifes 92 750 - replaced the stator and the mechanic said the wiring might be a problem. Looks like the PO made a couple of modifications one of which was paring down the wiring. The mechanic that replaced the stator pulled all the wires. I replaced the wiring harness, ic ignitor, reserve lighting unit and JB. All the connectors on the bike were clipped so I reconnected using bullet with heatshrink. Got all the wiring done but now have 1 small problem. All the lights flicker when either turn signal is on. Any thoughts?
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post #2 of 13 (permalink) Old 11-01-2013, 02:09 PM
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Originally Posted by allofus427 View Post
New to this forum - wished I found this before i started working on the bike. Wifes 92 750 - replaced the stator and the mechanic said the wiring might be a problem. Looks like the PO made a couple of modifications one of which was paring down the wiring. The mechanic that replaced the stator pulled all the wires. I replaced the wiring harness, ic ignitor, reserve lighting unit and JB. All the connectors on the bike were clipped so I reconnected using bullet with heatshrink. Got all the wiring done but now have 1 small problem. All the lights flicker when either turn signal is on. Any thoughts?
first thought.....
Clean all your grounds, particularly each light and ALL Junction (Fuse) Box connections.
hope this helps

EDIT: Junction Boxes have given problems in the past.

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!

Last edited by WilliamTech; 11-01-2013 at 03:44 PM.
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post #3 of 13 (permalink) Old 11-01-2013, 02:33 PM
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most brands of stators are crap for these bikes you could be not getting enough voltage at idle do the lights flicker when you raise the rpms up?

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post #4 of 13 (permalink) Old 11-01-2013, 04:51 PM
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first things first....check your battery voltage.
With the bike off, you should have 12.5V and it should rise up to around 14.5V or even higher with the engine revving over 3K.
if that isn't happening, then the charging system is weak....could be an inferior stator or a bad Regulator/Rectifier.

check your grounds and battery connections.....including the frame and engine ground straps......Don't just look at them or tighten them.....remove them to clean them....then use dielectric grease to protect them before tightening them back down.

pull your fuses and reseat them....just to be sure.

See what you get from doing these simple things...then report back before you go digging into the harness any deeper.
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post #5 of 13 (permalink) Old 11-02-2013, 01:23 AM
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X2 what Kc said .a weak battery in a vn will do weird things.

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post #6 of 13 (permalink) Old 11-02-2013, 01:18 PM Thread Starter
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Thanks - Things are starting to make sense - the battery was on the charge - I will be cleaning all connections and using the dielectric on all of the connections. Should I use it on the bullets that I put in as well? I will be posting pictures of the other modifications that were done for advice on those.
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post #7 of 13 (permalink) Old 11-02-2013, 11:05 PM
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If you look at the wiring diagaram too, you'll see that a lotta stuff is linked together.....check all yer bullet conections.....I mean ALL....get a good diagram and run em all down....thats usually the culprit....many of us have eliminated those connectors and just did straight solders....



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post #8 of 13 (permalink) Old 11-10-2013, 01:51 PM Thread Starter
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Ok will be heading back to the bike in the next day or 2. The question I have is the connections to the coils, does it matter what color goes to what side on the coil. The diagram just shows the colors but not the specifics.
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post #9 of 13 (permalink) Old 11-10-2013, 02:08 PM
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Quote:
Originally Posted by allofus427 View Post
Ok will be heading back to the bike in the next day or 2. The question I have is the connections to the coils, does it matter what color goes to what side on the coil. The diagram just shows the colors but not the specifics.

No, does not matter.
Coils are not Polarity Specific.


'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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post #10 of 13 (permalink) Old 12-04-2013, 02:34 PM Thread Starter
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UPDATE - New Battery has taken care of the lights, we connected the coils and have spark. Exhaust system is re-attached. Will post pictures of what was added/removed when I am home. Next is to make sure it runs and is charging correctly.
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