Intermittant turn signal operation - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 9 (permalink) Old 02-06-2012, 03:52 PM Thread Starter
..have a vulcan good day!
 
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Intermittant turn signal operation

Searched threads but unable to find this problem. Sometimes when placing right turn signal on...nothing happens. If i lean the bike towards the right (still steering straight) the signal will start blinking. Most other times signal function is fine. Yesterday, the Left turn signal duplicated the same problem (leaning bike left). I suspect either a turn signal switch malfunction or the wire harness connectors under Tank/bars. Has anyone else had similar turn signal problems ?


'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 #2 of 9 (permalink) Old 02-06-2012, 04:06 PM
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that's a new one! While on the center stand, maybe you can wiggle the Turn Signal Relay and see if it is a flaky connection. Same for the harness I guess.
good luck!
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post #3 of 9 (permalink) Old 02-06-2012, 04:06 PM
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Ck your grounds,12 volt lights will do the strangest things with an intermitten or poor ground, trailer lights are notorious for this! I ALWAYS ck and make sure I have a GOOD ground first.

04-3,200 miles bought July 2011 with 928 miles. Loaded with acessories to many to list here, see my albums for more details! I also make a custom tank bib specific for the 750 if anyone is interested, ck my albums for some pics.
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post #4 of 9 (permalink) Old 02-07-2012, 11:49 AM
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There is only so much that can be wrong with a turn signal system, because it is so simple. If the turn signals work at all, that rules out the bulbs and individual light sockets. Your problem is either in the switch, a loose connection in the wiring (either hot or ground), or a bad flasher unit. Because motorcycle handlebars turn, and the wiring has to turn with them, I have seen numerous cases where the wires rubbed against the frame or some other edge, and wore through the insulation, grounding it out. Connectors are also subject to corrosion.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
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post #5 of 9 (permalink) Old 02-07-2012, 03:33 PM
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I had the same issue with my turn signal on the right side. After checking the bulb, I traced the wiring from the turn signal back towards teh relays under the seat. I found I had a connection that was working loose. A few days later, I had the same issue on the left side. Same resolution. heck that our first.

Wayne Manwaring aka: Waynebo37
Clarkston, WA
'01 Vulcan 750
F&S Extended Passenger Backrest
Memphis Shades Santa Cruz 'shield
Throttle Rocker
Vista Cruise Throttle Lock
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post #6 of 9 (permalink) Old 02-07-2012, 03:58 PM Thread Starter
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connectors

TYVM Wayne... will perform connectors check first.

'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!
WilliamTech is offline  
post #7 of 9 (permalink) Old 02-07-2012, 07:59 PM
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I would guess connector under left front cover...........
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post #8 of 9 (permalink) Old 02-10-2012, 04:45 PM
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That is where I found the turn signal issue on the right rear turn signal. I found the left turn signal problem a week or so later under the seat where the wires coming from the turn signal connect with the wiring coming from the wiring harness cluster.

Wayne Manwaring aka: Waynebo37
Clarkston, WA
'01 Vulcan 750
F&S Extended Passenger Backrest
Memphis Shades Santa Cruz 'shield
Throttle Rocker
Vista Cruise Throttle Lock
Tourmaster Studded Slanted 'bags
Dianna Ride Bell
DeGoated, then ReGoated
K&N Air Filters
Custon VN Grille Guard
Misc. add-ons
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post #9 of 9 (permalink) Old 02-10-2012, 04:54 PM
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Ya' know Tech, the weather down there isn't going to be all that great for the next few days. Why not take the time to put some dielectric grease in those connections while your searching for your electrical problem. It helps protect the connections from future corrosion and contamination. Less downtime.

Good hunting ...

~~C8>
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