Bogging down - 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 4 (permalink) Old 10-10-2019, 06:23 PM Thread Starter
Junior Member
 
Join Date: Aug 2019
Posts: 12
iTrader: (0)
 
Bogging down

So for 3 days my vulcan 750 has been bogging down.wednesday was the worse.it would ride fine for 5 mins and then bogg down to the point it shut down.so last night i cleaned the carbs and today i went for a ride n at about 75mph it would bogg down.the only thing ive changed on the bile is the pitcock.i went from a 2 valve to a one valve with a T connector.my plugs are dry n black and they're only a month old.this is my daily driver.any help would be nice.thank you
Alexgmb24 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 10-11-2019, 08:35 AM
NewB to Vulcans
 
TonyO's Avatar
 
Join Date: May 2016
Location: Orlando, FL
Posts: 205
iTrader: (0)
 
If the gas pipes from the petcock are too long they will fold over and pinch off the gas enough to limit high speed travel but start and idle fine.......Been there, done that.

Also make sue the gas is going downhill all the way, its only a small drop from tank to carb bowl and an uphill climb can limit flow dramatically.

'99 Vulcan "Victoria"
TonyO is offline  
post #3 of 4 (permalink) Old 10-11-2019, 10:08 AM
Super Moderator
 
Join Date: Feb 2013
Location: SW Florida
Posts: 2,462
iTrader: (5)
 
Quote:
Originally Posted by TonyO View Post
If the gas pipes from the petcock are too long they will fold over and pinch off the gas enough to limit high speed travel but start and idle fine.......Been there, done that.

Also make sue the gas is going downhill all the way, its only a small drop from tank to carb bowl and an uphill climb can limit flow dramatically.
+1. also does the bike still have the stock airbox and filters? if so, check the carb vent hose that goes to the right side air filter housing (slips into the back), make sure its not bottomed out.

if its been ear shaved, make sure that same vent hose goes someplace up under the tank, it MUST be in clean non turbulent air to function properly. a good spot is the spare nipple on the fuel sender cover, or tie wrapped to the TOP of the frame rail under the tank

2005 VN750

Sold 11-27-17
michiganteddybear is online now  
 
post #4 of 4 (permalink) Old 10-13-2019, 12:48 AM Thread Starter
Junior Member
 
Join Date: Aug 2019
Posts: 12
iTrader: (0)
 
So i road the bike about 100 miles one way and it bogged down when the temp got cooler.then i stopped n it cleared up.but on my way home it was bogging down n i was stopping alot so i started to adjust the carb screw and it got better.like i said befor i put a after market pitcock on n had to make a line to one line from carbs to pitcock.its hard to find a new oem pitcock.but now im leaning more to the carbs cuz it made a change.my plus were dry because i was getting too much air.i believe now i need to adjust the carb.
Alexgmb24 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