Cooling question - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

  • 1 Post By Chris and Shim
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 03-25-2019, 05:07 PM Thread Starter
Chevy65's Avatar
Join Date: Jan 2019
Posts: 55
iTrader: (0)
Cooling question

My bike is in it’s early restoration, well I filled it with distilled water too flush and when I went too take the bolt out of the side of the cylinder nothing drained out I’m kindve at a loss because I mashed the hoses and cracked the bleeder to get all the air out and it felt like everything was primed and water came out of the bleeder but still nothing. Any idea? Thanks.

Last edited by Chevy65; 03-25-2019 at 05:11 PM.
Chevy65 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 03-26-2019, 01:13 AM
Wyattx's Avatar
Join Date: Jul 2013
Location: San Antonio
Posts: 41
iTrader: (0)
Just did a coolant flush on mine and the vinegar and distilled water mix is how I went . Took awhile to get done due to running it till fan kicked on and then letting it cool before I went to next step but when I finally got to drain plugs on cylinders I noticed very little came out but it was distinctly vinegar water mix . So I just continued sorry I’m no help just thought I would share . 4 different drain locations figured I must of gotten it all through out the whole process.

Wyattx is offline  
post #3 of 6 (permalink) Old 03-26-2019, 06:53 PM
Senior Member
Spockster's Avatar
Join Date: Nov 2012
Location: WV
Posts: 6,700
iTrader: (5)
I didn't get much, if any, from there when I flushed mine. It was all coming from the plug below the water pump, on the bottom of the right side of the engine.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual:

Owner's Manual:
Spockster is offline  
post #4 of 6 (permalink) Old 03-26-2019, 10:37 PM
Senior Member
Join Date: Aug 2017
Location: Madison, WI
Posts: 170
iTrader: (0)
I don't remember any plug on the side of the cylinder. I just pulled the bottom radiator hose, and the plug on the bottom of the engine. Was enough sediment in the engine that nothing came out until I poked something in the hole. Seems like that is probably the most important one to get anyway. . . .

GDI is offline  
post #5 of 6 (permalink) Old 03-27-2019, 10:28 AM Thread Starter
Chevy65's Avatar
Join Date: Jan 2019
Posts: 55
iTrader: (0)
Well kinda sounds like everybody gets the same results. Kinda had in the back of my mind like oh crap why is there nothing in the engine. Thanks everybody gave me alittle more piece of mind
Chevy65 is offline  
post #6 of 6 (permalink) Old 03-29-2019, 11:52 PM
Chris and Shim's Avatar
Join Date: Mar 2010
Location: Fredrickson Wa
Posts: 663
iTrader: (0)
There is a bolt on each cylinder to drain fluid that otherwise will get caught in the water passage. This is to drain what would not normally come out using just the main and radiator drain plugs. One pic below shows one with the bolt already removed and the other still has the bolt in.

The last pic shows about how much fluid to expect coming out.
Attached Thumbnails
Click image for larger version

Name:	RS Right side with plug removed.jpg
Views:	61
Size:	26.7 KB
ID:	45699   Click image for larger version

Name:	RS Left side rear cylinder plug.jpg
Views:	68
Size:	33.4 KB
ID:	45701   Click image for larger version

Name:	RS AMount from cyl water jacket drain plug.jpg
Views:	59
Size:	34.6 KB
ID:	45703  
roadpouring likes this.

Saddlebags, hard mounted
Fork mounted tool bag (now hard mounted)
Relocated rear turn signals
LED turn signals, brake lights and running lights
LED license plate frame
Engine Guard and Highway pegs
National Cycles Low Boy Heavy Duty windshield
Home made lowers (nice)
Custom seat (made by a local guy)
Iridium plugs (DPR7EIX-9)
Shenko 230 Tour Master tires at 11,123 miles
Splines lubed at 11,123 miles
Luggage rack
Light bar with LED lights
Progressive 412 shocks
Chris and Shim 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