gas lines - 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 8 (permalink) Old 03-03-2012, 02:46 PM Thread Starter
Senior Member
 
Join Date: Feb 2012
Posts: 579
iTrader: (0)
 
gas lines

When we got this bike the tank was disconnected from the carb tubes. On the petcock there is two outlets that are the same size and then under the tank more there is a smaller outlet that is attached to the petcock. Where do the carb lines goes? I am assuming on the matching set of outlets. Then what is the smaller one for?

Blessings!
Rich
mrseedsower is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 03-03-2012, 02:56 PM Thread Starter
Senior Member
 
Join Date: Feb 2012
Posts: 579
iTrader: (0)
 
nevermind I figured it out. The float must be stuck as the gas goes straight through the carbs and drains out a boot. Got to pull them to find the problem.
mrseedsower is offline  
post #3 of 8 (permalink) Old 03-03-2012, 03:01 PM
romeobravo172
 
romeobravo172's Avatar
 
Join Date: Nov 2011
Location: Leesburg,Fl
Posts: 842
iTrader: (18)
 
Send a message via Skype™ to romeobravo172
Try the Seafoam in carbs first before pulling. Might fix prob. The third line is the vacume to let fuel flow out the 2 fuel lines. That line is attached to the front carb or left side.

04-3,200 miles bought July 2011 with 928 miles. Loaded with acessories to many to list here, see my albums for more details! I also make a custom tank bib specific for the 750 if anyone is interested, ck my albums for some pics.
romeobravo172 is offline  
 
post #4 of 8 (permalink) Old 03-03-2012, 03:43 PM Thread Starter
Senior Member
 
Join Date: Feb 2012
Posts: 579
iTrader: (0)
 
there is something that either the boot is bad going to the front head and or the float is stuck open. Gas just poured out the bottom of the front carb.
mrseedsower is offline  
post #5 of 8 (permalink) Old 03-03-2012, 03:49 PM
Senior Member
 
Join Date: Jan 2012
Posts: 619
iTrader: (0)
 
Quote:
Originally Posted by mrseedsower View Post
there is something that either the boot is bad going to the front head and or the float is stuck open. Gas just poured out the bottom of the front carb.
Most likely a sticking float try tapping the side of the float bowl with the head of a screwdriver, the seafoam may loosen off crud that is holding the needle valve open
Swagman is offline  
post #6 of 8 (permalink) Old 03-03-2012, 03:58 PM
Members who have donated towards server costs
 
flitecontrol's Avatar
 
Join Date: Dec 2008
Location: Monroe, LA
Posts: 4,699
iTrader: (14)
 
The petcock shouldn't allow fuel to pass unless the engine is turning over. If it's leaking a long time after the engine is off you have two problems. A bad petcock and faulty float valve.

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 #7 of 8 (permalink) Old 03-03-2012, 04:10 PM Thread Starter
Senior Member
 
Join Date: Feb 2012
Posts: 579
iTrader: (0)
 
Swagman, I have used seafoam on my other bikes and it works great even when the Honda service tech said there wasn't anything else that could be done to those old carbs so he suggested I buy a new bike.

Anyway, what I learned about seafoam is that I need filters inline due to the settlement in the bottom of the tank could clog my jets. Since my front boot is completely disconnected I need to pull the carbs to fix that as I can't get my hands in there.
mrseedsower is offline  
post #8 of 8 (permalink) Old 03-03-2012, 05:32 PM
Senior Member
 
Join Date: Jan 2012
Posts: 619
iTrader: (0)
 
Quote:
Originally Posted by mrseedsower View Post
Swagman, I have used seafoam on my other bikes and it works great even when the Honda service tech said there wasn't anything else that could be done to those old carbs so he suggested I buy a new bike.

Anyway, what I learned about seafoam is that I need filters inline due to the settlement in the bottom of the tank could clog my jets. Since my front boot is completely disconnected I need to pull the carbs to fix that as I can't get my hands in there.
Well if they have to come out then give them a good service while they are out mine had blocked idle jets took me a while to get them clean the bike had been stood since 1998 so it was pretty dirty in the carbs but they are fine now its a wee bit fiddly but take your time and they do come out and go in just have to get them in the right position, and when you put them back make sure you have the rubber boots in the right place check the manual for the position
Swagman 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