Bike stalling, not idling comfortably, giving me heart palpitations - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
VN750 General Discussion

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 09-16-2011, 12:53 PM Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 16
iTrader: (0)
 
Bike stalling, not idling comfortably, giving me heart palpitations

Hey all,

So in my heart of hearts I think (hope) this must be a simple problem.

The other day I started up the bike just to run 'er for a little bit and enjoy the sound only to have a few, brief seconds of running followed by endlessly cranking the battery starter to no avail.

I decided to give it some time and wait till tomorrow. My gut was telling me the engine wasn't getting gas, for some reason, so I did nothing. This morning I could get it started but had to hold the throttle open to maintain any kind of run. Also there was a lot of sputtering and unevenness from the exhaust.

Any kind of help is greatly appreciated. I'm still learning how to diagnose these problems; hope it isn't a biggie.
drizdan is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 09-16-2011, 01:00 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
Hi drizdan,

Make sure you have a good charge on that battery before trying again.
Kinda sounds like low battery power. The VN750 demands a good strong battery to run properly.

~~C8>
.
ZCraggRatt is offline  
post #3 of 14 (permalink) Old 09-16-2011, 01:30 PM Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 16
iTrader: (0)
 
No, it's not the battery.

Special update! Now the bike is back to not starting again. I feel like it's a question of fuel. Intake outtake back break I don't know.
drizdan is offline  
 
post #4 of 14 (permalink) Old 09-16-2011, 02:14 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
ok ...
Have you pulled the plugs to see if they are wet with fuel ?
Have you checked to see that the petcock delivers fuel to each carburator ?
Have you checked that the carburator float bowl fuel levels are good ?
Have you looked for vacuum lines cracked, broken, or disconnected ?

~~C8>
.
ZCraggRatt is offline  
post #5 of 14 (permalink) Old 09-16-2011, 02:19 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
Can you tell if there is good compression in the cylinders?
Does running the choke on full make a difference?
Crack open the carb fuel bowl drains, and see if you have fuel in the bowls.
Have you checked to see that you are getting a nice fat blue spark at each spark plug?

Check some stuff out ... and let us know some more info ...

~~C8>
.
ZCraggRatt is offline  
post #6 of 14 (permalink) Old 09-16-2011, 02:33 PM Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 16
iTrader: (0)
 
Update update: I pulled the spark plugs and took a look. The rear two are fine, the front two are black and wet. How do I check compression? The fuel hoses all seem to be fine. How can I check the float bowl levels? I'll go crack the drains and see if there's fuel.
drizdan is offline  
post #7 of 14 (permalink) Old 09-16-2011, 02:50 PM
Members who have donated towards server costs
 
Crobins365's Avatar
 
Join Date: Jul 2006
Location: Kennett Square, PA
Posts: 3,505
iTrader: (48)
     
I check compression by pulling the spark plug, detaching it from the wire, and moving the wire way, way far away from me. Place your thumb against the now-open spark plug socket and turn the engine over - you should feel suction against your thumb. Someone else may have a more accurate - or safer! - way to do this.

When was your bike last ridden? Might just need a thorough carb cleaning.

C
Crobins365 is offline  
post #8 of 14 (permalink) Old 09-16-2011, 05:46 PM
Old Truck Junkie
 
niterider's Avatar
 
Join Date: Jul 2007
Location: Roby Texas
Posts: 4,130
iTrader: (15)
 
Dry the spark plugs and let the cylinder air out. Give the plugs a good brushing and re-enstall. Try and start engine.

02 honda sabre 1100
niterider is offline  
post #9 of 14 (permalink) Old 09-16-2011, 10:12 PM
Senior Member
 
shark88's Avatar
 
Join Date: Jan 2008
Location: Central, PA
Posts: 2,486
iTrader: (27)
 
Garage
Also, if you haven't been riding much then maybe you should try new gas in case you got some moisture in it and add some seafoam.

"Show me a man who makes no mistakes, and I'll show you a man who doesn't do things." Theodore Roosevelt."

2007 Victory Kingpin
Current projects - 1986 VN750 & 1988 EL250
shark88 is offline  
post #10 of 14 (permalink) Old 09-17-2011, 09:30 AM
If only it had 6th gear..
 
DavesVulster's Avatar
 
Join Date: Jul 2011
Location: North of Boston
Posts: 1,100
iTrader: (1)
 
Sounds like a stuck float in the front cylinder wet and black plugs = too much fuel. If you're going to use your finger to do a quick check on compression, do it from the side with the short spark plug cap. It's shallow and easier to get your finger on it. I think your front cylinder is flooding with gas tho. You should make changing your oil a high priority after you fix this since it may now have gas in it. Good luck. Hope you get er running.

Dave

Mods:
Jetted, shaved & coastered
Home made under-tank single filter
Converted ACCT's to manual (thanks wib714)
Dual vac lines on petcock (my cure for ticking)
LED tail/plate lights
Relocated helmet lock to license plate

Added stuff:
Customized hard bags w/ lights
Chrome levers
Hellcat windscreen
LED running lights
Home made 'Vita-Volt' meter
Foot rests on engine guard
Tunes

Hmm....she was on the back when we left.... ??
DavesVulster 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