Air Filter Question - 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 20 (permalink) Old 07-21-2011, 11:06 PM Thread Starter
Big Dumb Viking
 
asbrand's Avatar
 
Join Date: Apr 2009
Location: Marietta, GA
Posts: 597
iTrader: (0)
 
Send a message via AIM to asbrand Send a message via MSN to asbrand Send a message via Yahoo to asbrand
Air Filter Question

My bike still has the original "ears" for now.

My question: How often should you replace the filters in them? Or, can they be cleaned and re-used, and if so, how?

Thanks ahead of time!

.
.
.
-Az
http://www.asbrand.com

1989 Kawasaki Vulcan 750

Upgrades so Far:
Coastered
R/R relocated
Analog Voltmeter
PFIII Windshield
RAM GPS Mount w/Garmin GPS
Cigarette Lighter Power Adapter
Saddlemen's Classic Explorer Seat
Pro-Tac Driver's Backrest
LED Tail Light
LED Rear Turn Signals
Luggage Rack
Storage Trunk
Engine Guard w/Highway Pegs
Radiator Grill Cover
Turn Signal Relocation Bracket
Saddlebags
Floorboards
asbrand is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old 07-21-2011, 11:44 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
Hey Asbrand,

Our air filters are cleaned and conditioned just like a lot of lawn mower engines.

First, clean the filter elements in a mild detergent. Then rinse out and let dry. After that, completely soak the elements in non-detergent 30 weight engine oil. Work the oil in to the filter pores well. Then, squeeze as much of the oil out as possible, and then re-install.

The filter elements get quite delicate with age, so be careful to avoid damage with the cleaning and squeezing out. You definately should not use the wringing method.

Hope that helps.

Later,

~~C8> Ratt
________________________
'91 VN750 - Cosmic Splendor/Candy Wine
Done: Coastered, .020 ign., Iridiums, VM
Plexistar II, MCCT's, Relocated MOSFET
Next: LED's
Will Do: Horns, Shave(maybe)

Last edited by ZCraggRatt; 07-21-2011 at 11:47 PM.
ZCraggRatt is offline  
post #3 of 20 (permalink) Old 07-21-2011, 11:50 PM
If only it had 6th gear..
 
DavesVulster's Avatar
 
Join Date: Jul 2011
Location: North of Boston
Posts: 1,100
iTrader: (1)
 
I'm pretty sure the original elements can be washed but very gently. They rip if you look at them wrong, especially if they haven't seen daylight in a while. And I read oiling them should be done very spearingly. Too much will screw up your air/fuel ratio and ruin the filter element. There's a recommended oil that is best for them but... I can't remember. Sorry for the half info. I'll go peek around and update this if I find it.
DavesVulster is offline  
 
post #4 of 20 (permalink) Old 07-21-2011, 11:52 PM
If only it had 6th gear..
 
DavesVulster's Avatar
 
Join Date: Jul 2011
Location: North of Boston
Posts: 1,100
iTrader: (1)
 
Quote:
Originally Posted by ZCraggRatt View Post
Hey Asbrand,

Our air filters are cleaned and conditioned just like a lot of lawn mower engines.

First, clean the filter elements in a mild detergent. Then rinse out and let dry. After that, completely soak the elements in non-detergent 30 weight engine oil. Work the oil in to the filter pores well. Then, squeeze as much of the oil out as possible, and then re-install.

The filter elements get quite delicate with age, so be careful to avoid damage with the cleaning and squeezing out. You definately should not use the wringing method.

Hope that helps.

Later,
Love this site. Never saw more responsive people so willing to help
DavesVulster is offline  
post #5 of 20 (permalink) Old 07-22-2011, 01:40 AM
Linkmeister Supreme
 
OlHossCanada's Avatar
 
Join Date: Aug 2008
Location: Lethbridge, Alberta, Canada
Posts: 7,960
iTrader: (8)
   
Quote:
Originally Posted by asbrand View Post
My bike still has the original "ears" for now.

My question: How often should you replace the filters in them? Or, can they be cleaned and re-used, and if so, how?

Thanks ahead of time!
Just checked the Clymer manual and they recommend replacing the foam filters every 15,000 miles or after 5 cleanings, OR every 2 years.
That seems to indicate the filters should be cleaned and re-oiled every 3,000 miles, or with every oil change.

Clymers also says the filters can be cleaned with a mild high flash point solvent, then rinsed out with detergent and water, then clear water. Something like kerosene or paint thinner should be ok.

I cleaned the K&N filter on my car with just hot soapy water a few months ago. It was quite dirty and required a couple of spray applications of *Simple Green*, along with 3 changes of hot water and detergent before it was clean enough to satisfy me.

The Clymer manual describes the 30 weight oiling method that ZCragRatt mentions, but others have warned that this method makes it way too easy to over oil the foam, restrict air flow, and cause a rich mixture. Special filter oil is available at motorcycle dealers, and I recommend using that or the K&N filter oil that I used on my car filter.

ZCR is right about not wringing or twisting the filter elements.
Press the filter between layers of shop cloths or paper towel on a flat surface to absorb any excess oil.

I`m sure more complete directions are in the online service manual on the TOC site or the searchable version on Kanuck69`s sig line.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html

Last edited by OlHossCanada; 07-22-2011 at 01:44 AM.
OlHossCanada is offline  
post #6 of 20 (permalink) Old 07-22-2011, 03:36 AM Thread Starter
Big Dumb Viking
 
asbrand's Avatar
 
Join Date: Apr 2009
Location: Marietta, GA
Posts: 597
iTrader: (0)
 
Send a message via AIM to asbrand Send a message via MSN to asbrand Send a message via Yahoo to asbrand
Thanks for the info guys. One of the reasons I love this site.

.
.
.
-Az
http://www.asbrand.com

1989 Kawasaki Vulcan 750

Upgrades so Far:
Coastered
R/R relocated
Analog Voltmeter
PFIII Windshield
RAM GPS Mount w/Garmin GPS
Cigarette Lighter Power Adapter
Saddlemen's Classic Explorer Seat
Pro-Tac Driver's Backrest
LED Tail Light
LED Rear Turn Signals
Luggage Rack
Storage Trunk
Engine Guard w/Highway Pegs
Radiator Grill Cover
Turn Signal Relocation Bracket
Saddlebags
Floorboards
asbrand is offline  
post #7 of 20 (permalink) Old 07-22-2011, 03:25 PM
Senior Member
 
ifixf18s's Avatar
 
Join Date: Sep 2010
Location: Jacksonville fl
Posts: 458
iTrader: (0)
 
After oiling I squeeze mine out with a clean rag to soak up as much oil as I can.
ifixf18s is offline  
post #8 of 20 (permalink) Old 03-01-2012, 09:25 PM Thread Starter
Big Dumb Viking
 
asbrand's Avatar
 
Join Date: Apr 2009
Location: Marietta, GA
Posts: 597
iTrader: (0)
 
Send a message via AIM to asbrand Send a message via MSN to asbrand Send a message via Yahoo to asbrand
I know this is an old thread...but I just now, tonight, got around to opening up my air boxes. I was surprised to find that I didn't have the original filters. Evidently, someone had put K&N ones in there.

Still need to clean them...they're pretty filthy.

Do the K&N ones need to be oiled like the stock foam ones?

.
.
.
-Az
http://www.asbrand.com

1989 Kawasaki Vulcan 750

Upgrades so Far:
Coastered
R/R relocated
Analog Voltmeter
PFIII Windshield
RAM GPS Mount w/Garmin GPS
Cigarette Lighter Power Adapter
Saddlemen's Classic Explorer Seat
Pro-Tac Driver's Backrest
LED Tail Light
LED Rear Turn Signals
Luggage Rack
Storage Trunk
Engine Guard w/Highway Pegs
Radiator Grill Cover
Turn Signal Relocation Bracket
Saddlebags
Floorboards
asbrand is offline  
post #9 of 20 (permalink) Old 03-01-2012, 09:36 PM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,681
iTrader: (4)
     
Garage
Quote:
Originally Posted by asbrand View Post
I know this is an old thread...but I just now, tonight, got around to opening up my air boxes. I was surprised to find that I didn't have the original filters. Evidently, someone had put K&N ones in there.

Still need to clean them...they're pretty filthy.

Do the K&N ones need to be oiled like the stock foam ones?
I always thought all KN filters had to be oiled. But they , of course , reccomend their own filter oil. You can buy it in a spray can.

If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
Knifemaker is offline  
post #10 of 20 (permalink) Old 03-01-2012, 10:14 PM
Linkmeister Supreme
 
OlHossCanada's Avatar
 
Join Date: Aug 2008
Location: Lethbridge, Alberta, Canada
Posts: 7,960
iTrader: (8)
   
Quote:
Originally Posted by Knifemaker View Post
I always thought all KN filters had to be oiled. But they , of course , reccomend their own filter oil. You can buy it in a spray can.
I too believe all K&N filters need to be oiled.

I have a K&N filter on my car that I cleaned and oiled a few months ago.
Using their red colored oil made it easy to see when the filter was sufficiently and evenly oiled.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/showthread.php?t=9127
OlHossCanada 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