Inconsistent idle - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
All fuel system discussion

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 08-16-2009, 09:54 PM Thread Starter
Junior Member
Telxon's Avatar
Join Date: Aug 2009
Posts: 4
iTrader: (0)
Inconsistent idle

Sorry if this is a cross-post from the Trans / Rear forum -- didn't mean to post all that there.

I've got a 98 Vulcan 750 with another problem that's nagging me (yes, just got it back from the shop for the new stator, regulator *and* rectifier; thanks for asking).

I can't get a good idle to save my life. No combination of choke and idle-speed adjustment screw will result in a smooth, stable idle. It's always dying or racing (like nearly 3G's racing). The shop also noticed it when it was in for the stator and said they couldn't find any vacuum leaks, and 'blew out the bowls' (although I'm not sure what that would do to help the situation). They also indicated that they didn't think a full carb rebuild would likely fix the problem.

Ideas, or what should I be looking for?
Telxon is offline  
Sponsored Links
post #2 of 2 (permalink) Old 08-19-2009, 12:55 AM
Authority84's Avatar
Join Date: May 2009
Location: Dade City FL
Posts: 97
iTrader: (0)
When I first got my bike it would no matter how I adjusted the idle shoot up to 3k Rpms. I would readjust at stop lights and it would be right back up by time I came to a stop again.

Not sure if its the same as what your is doing but I had a friend help me pull the carbs and we gave them a good cleaning. Thing ran like a champ after. Idle still sits at a solid 1100. I just had to repull the carbs to clean the floats today because of a flooding issue but thats because we were stripping the screws when we had them off before and couldn't get to them at the time.

Im sure more will come in with easier things to check first but if all else fails a good carb cleaning never hurts.

Good luck hope you find the problem soon I know a bike that doesn't idle well can be a pain.

1993 Kawasaki Vulcan VN750 <To Be Named Later>
Purchased Used on 05/09/2009
11,681 Miles...
Dade City, Florida
Iridium Spark Plugs
New Shinko 230 Tour Masters
110/90/19 Front 150/90/15 Back
Carbs Cleaned 06/22/09
Spline Lube 6/29/09
1992 Kawasaki Vulcan VN750 <Parts Bike>
Authority84 is offline  
Sponsored Links


Quick Reply

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


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

Email Address:


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