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Where does this wire go?
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post #1 of 40 (permalink) Old 03-08-2014, 08:20 PM Thread Starter
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Need Help!

I have an '86 Vulcan and I'm experiencing 2 of the 4 cyl (right side I think) not firing and the tach would shut down. Running on 2 plugs i guess. I replaced both coils, wires, boots and started right up and ran great for a day. Thought problem was fixed, today same thing. Need help and advise please...
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post #2 of 40 (permalink) Old 03-08-2014, 08:23 PM
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the VN750 is a v-twin, not a V-quad.. 2 plugs per cylinder
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post #3 of 40 (permalink) Old 03-08-2014, 08:33 PM
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I would check the pickup coils.

87 vn750at least that is what the frame #'s say
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post #4 of 40 (permalink) Old 03-08-2014, 08:45 PM
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Quote:
Originally Posted by slimvulcanrider View Post
the VN750 is a v-twin, not a V-quad.. 2 plugs per cylinder
Might be one of them thar xperimental models
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lowered with progessive 412 10" shocks
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post #5 of 40 (permalink) Old 03-08-2014, 09:29 PM
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I think it is time to read the Vulcan Verses to possibly learn a bit about this particular machine. Since it was your first posting, Welcome.

and always remember, "Ride until you rot!"
**Really not sure if the Big "C" is back right now
but having to face the fact that this is a lifetime routine
going forward. Five operations done and it still continues.

Tom
Vulcan 2000
New ride: 2009 Victory Vision Arlen Ness Signature Series
4507 miles
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post #6 of 40 (permalink) Old 03-08-2014, 09:31 PM
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Quote:
Originally Posted by OleDirtyDoc View Post
Might be one of them thar xperimental models
Sent from Motorcycle.com Free App
Maybe something Wolfie has been playing with in the shop.

and always remember, "Ride until you rot!"
**Really not sure if the Big "C" is back right now
but having to face the fact that this is a lifetime routine
going forward. Five operations done and it still continues.

Tom
Vulcan 2000
New ride: 2009 Victory Vision Arlen Ness Signature Series
4507 miles
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post #7 of 40 (permalink) Old 03-08-2014, 09:33 PM
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Quote:
Originally Posted by Vulcan2000 View Post
Maybe something Wolfie has been playing with in the shop.
No it's not a red headed 3nippled squirrel.lol.love ya Wolfie

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ONE RATS ASS GIVEN PER POST
Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #8 of 40 (permalink) Old 03-09-2014, 01:30 AM
..have a vulcan good day!
 
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Quote:
Originally Posted by VolFan View Post
I have an '86 Vulcan and I'm experiencing 2 of the 4 cyl (right side I think) not firing and the tach would shut down. Running on 2 plugs i guess. I replaced both coils, wires, boots and started right up and ran great for a day. Thought problem was fixed, today same thing. Need help and advise please...
VN750's are two cylinder engines each cylinder with two Spark Plugs.
When I lost spark to a cylinder, I replaced the Ignitor Box (CDI Box) .....fixed the problem.

EDIT: Sorry guys....just now read Posts 2-7


'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; 03-09-2014 at 09:57 PM.
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post #9 of 40 (permalink) Old 03-09-2014, 01:42 AM
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Quote:
Originally Posted by WilliamTech View Post
VN750's are two cylinder engines each cylinder with two Spark Plugs.
When I lost spark to a cylinder, I replaced the Ignitor Box.....fixed the problem.

EDIT: Sorry guys....just now read Posts 2-7

I don't think an ignition control box would fix the problem.. he is only loosing spark on one side... both cylinders are firing, but not on both plugs

Last edited by slimvulcanrider; 03-09-2014 at 03:09 AM.
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post #10 of 40 (permalink) Old 03-09-2014, 03:06 AM
..have a vulcan good day!
 
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Quote:
Originally Posted by slimvulcanrider View Post
I don't think an ignotro would fix the problem.. he is only loosing spark on one side... both cylinders are firing, but not on both plugs
How's that ?
Bad Plug wires or bad plugs....right ?


'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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