Synch is way out of whack - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
All fuel system discussion

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 07-23-2013, 11:11 AM Thread Starter
2014 KLR 650!
 
Goofyfoot2001's Avatar
 
Join Date: Jun 2013
Location: Tega Cay, SC
Posts: 3,361
iTrader: (1)
 
Synch is way out of whack

OK, so far I've doine the ear shave and Marbling (Coasters are hard to come by apparently). I have stock pipes on a 1995 vn750. The bike has a buzz around 3500 to 4500 rpm so I embarked on the carb synch. I bought the guages and I gotta say, I just didn't get warm and fuzzies from the reading on those so I build my own manometer which definitely seems like the way to go on this. I used two stroke oil as my medium. My girlfriend doesn't let me play with mercury any more.

So anyway, I warmed it up per the verses and when I hook it up, the rear carb wants to suck all the oil and I have to turn the engine off before it does.

So, I spin the bolt counter clockwise at least a turn or two and now it's getting better but the the manometer levels aren't even but afraid to go further. Could they be that far off?

The bike seems to run fat like ti goes pretty well but fat like a wet fart. Does that make sense. I replaced the plugs as well FYI. Also cleaned the ignition switch which seems to have fixed my issue with the bike turning off randomly at high speed.
Goofyfoot2001 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 07-23-2013, 11:34 AM
Banned
 
Join Date: Jan 2013
Posts: 2,190
iTrader: (0)
 
Quote:
Originally Posted by Goofyfoot2001 View Post

Could they be that far off?
Mine was.

Timed me out again.
wmsonta is offline  
post #3 of 12 (permalink) Old 07-23-2013, 12:06 PM
Giggity!
 
kanuck69's Avatar
 
Join Date: Jun 2007
Location: Ohio, Zanesville
Posts: 4,307
iTrader: (24)
     
Garage
It's not really much of an adjustment for one side to pro dominantly suck.
I've done mine & experienced exactly what your describing.
Don't worry, your on the right track.
kanuck69 is offline  
 
post #4 of 12 (permalink) Old 07-23-2013, 07:20 PM Thread Starter
2014 KLR 650!
 
Goofyfoot2001's Avatar
 
Join Date: Jun 2013
Location: Tega Cay, SC
Posts: 3,361
iTrader: (1)
 
Ok, so i got the carbs synched as far as the manometer is concerned but now seems like i lost power. The air mix screws are out two and half turns. Running hi test gas. Its about 85 degrees outside ans hundred humitity. Typing on tablet in garage....
Goofyfoot2001 is offline  
post #5 of 12 (permalink) Old 07-23-2013, 09:32 PM Thread Starter
2014 KLR 650!
 
Goofyfoot2001's Avatar
 
Join Date: Jun 2013
Location: Tega Cay, SC
Posts: 3,361
iTrader: (1)
 
Idle adjust does nothing now

As far as reducing the high idle speed. May be because ive messed with throttle but it will not reduce no matter hiw much i tutn it counter clockwise. Idle is about 1500 - 2000 in neutral.
Goofyfoot2001 is offline  
post #6 of 12 (permalink) Old 07-23-2013, 09:37 PM
..have a vulcan good day!
 
WilliamTech's Avatar
 
Join Date: May 2011
Location: Pensacola, FL.
Posts: 4,508
iTrader: (17)
   
Quote:
Originally Posted by Goofyfoot2001 View Post
As far as reducing the high idle speed. May be because ive messed with throttle but it will not reduce no matter hiw much i tutn it counter clockwise. Idle is about 1500 - 2000 in neutral.
vacuum leak .... boots ?

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
WilliamTech is offline  
post #7 of 12 (permalink) Old 07-23-2013, 09:37 PM
Prowling Tiger
 
blazblu82's Avatar
 
Join Date: Apr 2012
Posts: 2,048
iTrader: (4)
 
Quote:
Originally Posted by Goofyfoot2001 View Post
As far as reducing the high idle speed. May be because ive messed with throttle but it will not reduce no matter hiw much i tutn it counter clockwise. Idle is about 1500 - 2000 in neutral.
Either the idle adjuster broke or the linkage is stinking or you have a vacuum leak causing the idle to run up some. the idle adjuster should feel somewhat stiff when turning if it free spins, it's broke.

I only understand what I don't understand.
blazblu82 is offline  
post #8 of 12 (permalink) Old 07-23-2013, 09:49 PM
Banned
 
Join Date: Jan 2013
Posts: 2,190
iTrader: (0)
 
If the sync was off the page out, you may have to go through the throttle cable adjustment procedure. Does the throttle still have free travel?
wmsonta is offline  
post #9 of 12 (permalink) Old 07-23-2013, 10:04 PM Thread Starter
2014 KLR 650!
 
Goofyfoot2001's Avatar
 
Join Date: Jun 2013
Location: Tega Cay, SC
Posts: 3,361
iTrader: (1)
 
It does seem to have some play except maybe the decel side. I dont think the idle screw is broke but will check in the morning. Also, i guess i should put a dab of red locktite on the vacuum bolt?
Goofyfoot2001 is offline  
post #10 of 12 (permalink) Old 07-23-2013, 10:46 PM
Prowling Tiger
 
blazblu82's Avatar
 
Join Date: Apr 2012
Posts: 2,048
iTrader: (4)
 
Quote:
Originally Posted by Goofyfoot2001 View Post
It does seem to have some play except maybe the decel side. I dont think the idle screw is broke but will check in the morning. Also, i guess i should put a dab of red locktite on the vacuum bolt?
If the return cable is tight, then your throttle is not hitting the throttle stop. As wmsota suggested, you need to adjust your throttle cables to where there is only a couple mm's of play.

I only understand what I don't understand.
blazblu82 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Tags
carborator , manometer , synch

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