Iridium NGK Spark Plugs - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
VN750 General Discussion

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 20 (permalink) Old 03-05-2012, 01:36 PM Thread Starter
Member
 
Blaze Orange's Avatar
 
Join Date: Sep 2006
Location: Florida
Posts: 54
iTrader: (0)
 
Smile Iridium NGK Spark Plugs

I have a set of NGK Iridium spark plugs in my VN750 with 18,000 miles on them. The engine still starts right up and runs good. When do you guys eventually replace the NGK Iridium plugs????? My bike is a 2006 with 32,000 miles on it.
Blaze Orange is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old 03-05-2012, 02:53 PM
Senior Member
 
Join Date: Aug 2010
Location: Daleville, Alabama
Posts: 445
iTrader: (0)
 
As long as it's running good I wouldn't worry about them. Just check them every now and then. I also have about 18,000 on my set. I pull them every 3 or 4 thousand just to take a look, nothing ever found and really shouldn't be it your mixtures are set correctly and no engine problems. I'm thinking they are going to last 50-75k or so, maybe more.
CW-4 is offline  
post #3 of 20 (permalink) Old 03-05-2012, 04:24 PM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,634
iTrader: (4)
     
Garage
Quote:
Originally Posted by Blaze Orange View Post
I have a set of NGK Iridium spark plugs in my VN750 with 18,000 miles on .......When do you guys eventually replace the NGK Iridium plugs????? My .

Uh. Never?

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 #4 of 20 (permalink) Old 03-05-2012, 05:17 PM
Members who have donated towards server costs
 
JM2001's Avatar
 
Join Date: Mar 2011
Location: Rochester, New York
Posts: 1,803
iTrader: (1)
 
Quote:
Originally Posted by Knifemaker View Post
Uh. Never?
KM is cheap lol

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
JM2001 is offline  
post #5 of 20 (permalink) Old 03-05-2012, 05:22 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
Quote:
Originally Posted by JM2001 View Post
KM is cheap lol
may be JM ... but I bought iridiums and put them in mine partially because I think he's right!
ZCraggRatt is offline  
post #6 of 20 (permalink) Old 03-05-2012, 06:25 PM
Senior Member
 
Join Date: Aug 2010
Location: Daleville, Alabama
Posts: 445
iTrader: (0)
 
Well 75k is real close to never, isn't it?
CW-4 is offline  
post #7 of 20 (permalink) Old 03-05-2012, 06:32 PM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,634
iTrader: (4)
     
Garage
Quote:
Originally Posted by CW-4 View Post
Well 75k is real close to never, isn't it?
That was what I was alluding to. I'll likely sell my bike before I have to change the plugs. And that ain't being cheap, that be being smart.

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 #8 of 20 (permalink) Old 03-05-2012, 07:42 PM
Members who have donated towards server costs
 
Join Date: Nov 2007
Location: Chandler, Arizona
Posts: 2,850
iTrader: (0)
 
I see no reason to replace ANY brand or type of spark plugs as long as the bike is running good, starting good, and gas mileage is still normal. These things will change when the plug gap gets too big, then it's time for new plugs. But, if you use NGK plugs, they are cheap enough to replace once in a while just to make you feel better, if it does. I'm a little unhappy about having to replace 4 plugs in a 2 cylinder engine, when other 2 cylinder engines run just fine with just 2 plugs. It doubles the cost, and for nothing. However, I am happy the Vulcan's plugs are easy to change, some motorcycle plugs are almost impossible to get to. The Suzuki Savage requires removal of the seat and tank to get to the plug. But at least there is just one. Try changing the plugs on a '93 Kawasaki ZX11. It takes half a day.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
VN750Rider/Jerry is offline  
post #9 of 20 (permalink) Old 03-05-2012, 07:59 PM
Senior Member
 
cglennon's Avatar
 
Join Date: May 2008
Location: Portland, OR
Posts: 733
iTrader: (0)
 
Send a message via Skype™ to cglennon
Quote:
Originally Posted by Blaze Orange View Post
I have a set of NGK Iridium spark plugs in my VN750 with 18,000 miles on them. The engine still starts right up and runs good. When do you guys eventually replace the NGK Iridium plugs????? My bike is a 2006 with 32,000 miles on it.
Iridium plugs last longer than other plugs, but the electrode tip will eventually 'round over'. That's when the plug's performance starts to degrade. For my Subaru Outback that happens at 30K. Not sure about the VN750, but check the electrode tip; is it still square (good) or rounded over (bad)?


Chris Glennon - Portland, OR
cglennon is offline  
post #10 of 20 (permalink) Old 03-05-2012, 08:47 PM
Linkmeister Supreme
 
OlHossCanada's Avatar
 
Join Date: Aug 2008
Location: Lethbridge, Alberta, Canada
Posts: 7,960
iTrader: (8)
   
I have NGK platinum plugs in my 1992 Olds 88 that have been in there for at least 11 years and close to 100,000 kilometers, (60k miles), and they show no wear. I`m going for 100k miles on them.

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
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