Random shut down, need some help. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
VN750 General Discussion

 5Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 29 (permalink) Old 01-22-2018, 04:53 PM Thread Starter
Junior Member
 
S3rv3nt's Avatar
 
Join Date: Dec 2016
Posts: 13
iTrader: (0)
 
Random shut down, need some help.

Running and riding just fine when the bike hiccups and stumbles a little then stops running. Some times it will just bump start itís self while coasting and if not then it will always start right back up with the button. Some trips it runs like a champ and no issues at all. All cables look good and I canít find a problem or duplicate it consistently to track down its cause. Any clues as to the phantom headache that is happening to my 86 750 Bobber? I have done the ear shave and bobbed it but pretty much stock otherwise. It is garaged and I live in AZ so not really a cold or Hot issue since it is random during all weather. I always use premium and use a fuel additive. I am getting spark from all plugs and fluid levels look good also. Iím guessing something with carbs but Iím not sure on carbs too well so before I had my shop tear them apart for me I thought Iíd ask for some help from the real experts on these bikes.
Thx in advance.
S3rv3nt is offline  
Sponsored Links
Advertisement
 
post #2 of 29 (permalink) Old 01-22-2018, 04:58 PM
FREEBIRDS MC CENTRAL NY
 
OleDirtyDoc's Avatar
 
Join Date: May 2011
Location: Norwich,NY
Posts: 15,888
iTrader: (0)
     
Garage
Send a message via Yahoo to OleDirtyDoc
look up POOGS(phantom out of gas syndrome) .if ya wouldn't mind,would you please do an introduction for us in the newbie section?and after you get your post count up,how about some pictures of your bike?thanks

Sent from my LGL34C using Tapatalk

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
OleDirtyDoc is offline  
post #3 of 29 (permalink) Old 01-22-2018, 05:28 PM Thread Starter
Junior Member
 
S3rv3nt's Avatar
 
Join Date: Dec 2016
Posts: 13
iTrader: (0)
 
POOGS was my first thought for issues but I have done the vent clean out and it has not seemed to help. And since it starts right back up I figured it was some other issue. Would changing the petcock to a free flowing version help with fuel flow? Any other guesses as to my problem?
S3rv3nt is offline  
 
post #4 of 29 (permalink) Old 01-22-2018, 08:30 PM
Senior Member
 
Spockster's Avatar
 
Join Date: Nov 2012
Location: WV
Posts: 6,636
iTrader: (5)
   
Does the switch ever act funny?

Also check connections under the left neck cover.

Premium isn't helping it any, but it's not causing it to stall. Is probably building up carbon though.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
Spockster is offline  
post #5 of 29 (permalink) Old 01-22-2018, 10:03 PM Thread Starter
Junior Member
 
S3rv3nt's Avatar
 
Join Date: Dec 2016
Posts: 13
iTrader: (0)
 
Switch replaced

I had suspected a problem in the starter or kill switch so I removed and replaced them. Moved the location to the neck cover on the right side. Then I changed to a whiskey throttle while I was at it. ( cleaned up the look) problem still happening. Today I went back through the vent cleaning process ( just for giggles ) and removed my tank bag. I am having a thought that perhaps the tank bag is choking the fill vent? I will run it a bit and see if it helps, but since it has been random it might be a few days to get a good feeling on a fix.
S3rv3nt is offline  
post #6 of 29 (permalink) Old 01-22-2018, 10:28 PM
FREEBIRDS MC CENTRAL NY
 
OleDirtyDoc's Avatar
 
Join Date: May 2011
Location: Norwich,NY
Posts: 15,888
iTrader: (0)
     
Garage
Send a message via Yahoo to OleDirtyDoc
does it happen when the bars are turned either to the left or right?

Sent from my LGL34C using Tapatalk

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
OleDirtyDoc is offline  
post #7 of 29 (permalink) Old 01-22-2018, 10:39 PM
FREEBIRDS MC CENTRAL NY
 
OleDirtyDoc's Avatar
 
Join Date: May 2011
Location: Norwich,NY
Posts: 15,888
iTrader: (0)
     
Garage
Send a message via Yahoo to OleDirtyDoc
check for loose connections or bare wires under the headlight bucket

Sent from my LGL34C using Tapatalk

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
OleDirtyDoc is offline  
post #8 of 29 (permalink) Old 01-23-2018, 07:50 AM Thread Starter
Junior Member
 
S3rv3nt's Avatar
 
Join Date: Dec 2016
Posts: 13
iTrader: (0)
 
No issues turning the bars and I will pull all connections on left side neck panel and dielectric grease every thing after work.
S3rv3nt is offline  
post #9 of 29 (permalink) Old 01-23-2018, 08:23 AM
Super Moderator
 
Join Date: Feb 2013
Location: SW Florida
Posts: 2,459
iTrader: (5)
 
ignition switch


the evil seed of all random problems
Paulywog likes this.

2005 VN750

Sold 11-27-17
michiganteddybear is offline  
post #10 of 29 (permalink) Old 01-23-2018, 11:50 AM
1986 VN750
 
thtanner's Avatar
 
Join Date: Nov 2011
Location: Dana Point, CA
Posts: 3,255
iTrader: (8)
 
Garage
Quote:
Originally Posted by michiganteddybear View Post
ignition switch


the evil seed of all random problems
Yea, they are a real PITA. I second the ignition switch.
Paulywog likes this.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
thtanner 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