ignition switch and a loom problem - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 03-05-2009, 12:43 PM Thread Starter
 
Join Date: Mar 2009
Posts: 44
iTrader: (0)
 
ignition switch and a loom problem

hi. just bought the vn 700 1989. its been laid up for couple of year. so bought as non runner... No prob new fuel
press starter hey presto... No such luck.
so been on the forum looking for as much info as i can get.
Basically the prob is no spark.
was a spark, and it fired up. then cut out, fired up again then cut out, and has now gave up the ghost...
opened the loom (wire harness) up and going through all the wire stuff with metre. mostly guess work...
m8 came up who's a little bit handier and checked the ohms on pik up etc. scratched head had a coffe then went home
confused. lol...
Anyway a new prob has arose.
ignition switch on. yb wire on the loom shows 12volts. turn ignition off and i get continuety (buzzing sound from metre)
to frame. as i would expect, earth.
so i disconected the ignition bit from the loom and took it apart, looks ok, cleaned terminals
and put backtogether. no luck.
if i disconect the block bit on the ignition lead and leave the two seprate wires in, the voltage jumps
from 1 to 5 volts on the
ground wire...
Is my ignition switch caput? they look basic so what goes wrong.
wired wrong somwhere in the loom?
somthing else burnt out and causing this?[/B]
other than this be a good bike wen it gans...
any help be greatly appreciated...

Last edited by scotiaredd; 03-05-2009 at 01:30 PM.
scotiaredd is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 03-05-2009, 01:12 PM
Members who have donated towards server costs
 
flitecontrol's Avatar
 
Join Date: Dec 2008
Location: Monroe, LA
Posts: 4,715
iTrader: (14)
 
What's a loom?

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
flitecontrol is offline  
post #3 of 12 (permalink) Old 03-05-2009, 01:22 PM
Old Truck Junkie
 
niterider's Avatar
 
Join Date: Jul 2007
Location: Roby Texas
Posts: 4,133
iTrader: (15)
 
I believe loom means the bunch of wires running together and wraped with tape.

02 honda sabre 1100
niterider is offline  
 
post #4 of 12 (permalink) Old 03-05-2009, 01:26 PM
Members who have donated towards server costs
 
flitecontrol's Avatar
 
Join Date: Dec 2008
Location: Monroe, LA
Posts: 4,715
iTrader: (14)
 
Quote:
Originally Posted by niterider View Post
I believe loom means the bunch of wires running together and wraped with tape.
OK. Figured it meant something like that. Never heard the term before.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
flitecontrol is offline  
post #5 of 12 (permalink) Old 03-05-2009, 01:29 PM Thread Starter
 
Join Date: Mar 2009
Posts: 44
iTrader: (0)
 
loom, yep its the wire harness...
scotiaredd is offline  
post #6 of 12 (permalink) Old 03-05-2009, 03:19 PM
Linkmeister Supreme
 
OlHossCanada's Avatar
 
Join Date: Aug 2008
Location: Lethbridge, Alberta, Canada
Posts: 7,960
iTrader: (8)
   
I believe the corrugated plastic hose with a slit down the length of it, that protects the wiring harness is called a loom.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
OlHossCanada is offline  
post #7 of 12 (permalink) Old 03-05-2009, 03:31 PM
 
Join Date: Feb 2009
Posts: 15
iTrader: (0)
 
If I understand you correctly, you bought an old bike that hasn't run for a few years. You tried to turn it over and it did, and it fired (weakly) a couple of times. But, now it'll turn over, but won't fire at all.

I think your problem is probably the same as mine (situation is exactly the same - bike not run in quite awhile)...

Don't chase electrical bugs, if the bike has spark.
Take the carburetors apart and clean the crap out of the bowls.

See my thread: https://www.vn750.com/forum/showthread.php?t=9928

1st, pull out one plug at a time, clip it into the plug-wire and hold the tang to ground while cranking the engine. Do you see spark? Move to the next plug.

If all the plugs have spark, it's likely plugged jets in the carbs causing your problem. (Modern fuel is surpisingly quick to leave behind crystalline deposits.)

If all the plugs don't have spark: Ohm-test the Regulator, the stator, and the ignitor.
IIonPilgrimg is offline  
post #8 of 12 (permalink) Old 03-05-2009, 04:40 PM Thread Starter
 
Join Date: Mar 2009
Posts: 44
iTrader: (0)
 
no spark to the plugs. ive tested the pulse coil, not tested stater yet will do that next. Like i said was working fine but like a switch of has happened. all lights were working, indicators horn etc. But now only the neutral light and oil light come on. Plus the ground wire is showing 12 volts running through it, need to find out if there is a short somewere on the harness... Maybe ignition switch or somthing.
cheers for advice... next will be to clean carbs out. soon as get spark back
scotiaredd is offline  
post #9 of 12 (permalink) Old 03-05-2009, 06:06 PM
Chucklehead
 
dragon159's Avatar
 
Join Date: Dec 2007
Location: Poynette WI
Posts: 1,050
iTrader: (3)
 
Make sure to check the wires leading to the switch that run next to the headstock. I know of a few here that have had the wires worn through there and given problems.
In another thought, maybe there's a member close enough to you to give a hand and second set of eyes?

87 vn750at least that is what the frame #'s say
"Squirrel Bike" aka Jersey

Rat bike with a good PR agent

shaved and coastered
2 into 1 exhaust
rear 170 and front 110
Relocated R/R
custom dash with voltmeter
Spitfire windscreen
Plutonium plugs
Recovered seat without "butt hammers"
More to come
Praise to the Parts Goddess Crobins for needed things

When someone tells me "Great minds think alike" all I can think is "You Pervert"
dragon159 is offline  
post #10 of 12 (permalink) Old 03-06-2009, 07:38 AM Thread Starter
 
Join Date: Mar 2009
Posts: 44
iTrader: (0)
 
cheers. took the switch of altogether and opened the wires up. underneath the switch i see a couple of wires have been soldered. so i suppose good place to start... still cant work out were the voltage is coming from on the harness (Ground wires arre live) certaintly missin somthing.
Heading of to mates on saturday see if we can sort it out...
cheers dragon159...
scotiaredd is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome