Contact Overland Solutions for all your custom modifications and setup for overland travel.               Discover the extraordinary with Compass Expeditions.

Go Back   The HUBB > Technical, Bike forums > Yamaha Tech
Iridium spark plugs worth it? Iridium spark plugs worth it?
Register FAQ Calendar Search Today's Posts Mark Forums Read

Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
With more than 58 destinations worldwide, Edelweiss Bike Travel is Number 1 in guided motorcycle tours!
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 6 Jul 2009
bacardi23's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2007
Location: XXX<-Portugal->Azores->Santa Maria (island)
Posts: 1,347
Iridium spark plugs worth it?
Hey there!

I'm thinking of getting some new Iridium spark plugs on ebay for my XT...

The matching DPR8EA-9 is the DPR8EIX-9 and I can get them cheaper on ebay and have them shipped than to actually buy the standard NGK plug at my island!

I did notice that some sellers list the spark plug for the XT600 as being the DPR7EIX-9... maybe a mistake on their behalf??

What are the pros and cons of such spark plugs?


Vando
Reply With Quote
  #2  
Old 6 Jul 2009
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Merseyside, England.
Posts: 3,414
Don't waste your money !!!!!!!

You wont notice any gain on a low compression, low power thumper like the XT...

They are for very high performance race bikes where engine temperatures are very high and squeezing an extra 0.001% of efficiency is worth the extra cash.

But, if you can get them for the same price... why not !!! They should last just as long as regular platinum plugs.

Read this... Iridium spark plugs by NGK and Denso
__________________
www.touringted.com
Reply With Quote
  #3  
Old 6 Jul 2009
Registered Users
New on the HUBB
  
Join Date: Aug 2005
Location: München, Germany
Posts: 9
Iridium for Ducati
Hey Dude,
Have had some serious problems with my Ducati in the wet (no surprise there :-) so part of the electrical system had to be dried and greased and at the same time a set of Iridium plugs were fitted. If I notice the difference... well, starting is much easier for one. Second it is less rough when on same speed. Third, when I open the throttle the power comes just that little bit quicker... like tedmagnum said about that "0.001% of efficiency"

The XT you have should probably do fine with normal sparkies but if you like to tinker - go for it.
__________________
You only need patience when you don\'t have any
Reply With Quote
  #4  
Old 13 Jul 2009
bacardi23's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2007
Location: XXX<-Portugal->Azores->Santa Maria (island)
Posts: 1,347
YAMAHA XT600E SPARK PLUGS

NGK

Standard Copper Core : DPR8EA-9
Iridium : DPR8EIX-9

Gap on both has to be 0.9mm (GAP size directly from NGK website)

Denso

Standart: X24EPR-U9 Regular DENSO X24EPR-U9 (DPR8EA-9) - 420-01-601 - Online Moto Parts
Iridium: IX24B Iridium DENSO IX24B (DPR8EIX-9) YAMAHA ×Ô 600 IRIDIUM - 420-01-820 -


Vando
Reply With Quote
  #5  
Old 13 Jul 2009
Registered Users
Veteran HUBBer
  
Join Date: Apr 2008
Location: West Yorkshire UK
Posts: 936
Quote:
Originally Posted by tedmagnum View Post
Don't waste your money !!!!!!!
+1 on that.

If you can get a known brand for the right money with the right numbers that's what you need. Anything else is just a gimmick, and a dangerous gimic with the likes of certain products whose central electrode is prone to dropping out into the cylinder. I won't write anything potentially libelous, but lets say I never saw any issues with a bog standard NGK, Denso or Champion.

Andy
Reply With Quote
  #6  
Old 13 Jul 2009
Registered Users
Veteran HUBBer
  
Join Date: Dec 2008
Location: Denmark
Posts: 772
I've changed my iridium back to a regular NGK, as the iridum dind't "change color" so i couldn't "read it" (lean og rich mixture)
Reply With Quote
  #7  
Old 13 Jul 2009
bacardi23's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Sep 2007
Location: XXX<-Portugal->Azores->Santa Maria (island)
Posts: 1,347
In my island, there is only one place that sells the sparkplugs for the XT and I've had to wait several times over a week for they to order it and have it in stock..and they sell it for almost 10euros EACH!

I've used some Champion N9YC on my DT125R and never had any problems with it! It even behaved better than the NGK BR9ES


So yeah.. I can even get them from ebay for about the same price.. and since they are even a little better why not get one to try it out?! :P

I will have to use the DPR8EA-9 for a while because of the exhaust valves and new Mikuni BST40... So I can check if I got a good mixture and not run the bike too lean or too rich...


Vando
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 3 (0 Registered Users and/or Members and 3 guests)
 
Thread Tools
Display Modes
Linear Mode Linear Mode

Posting Rules
You may not post new threads
You may not 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ear Plugs???? grendel Equipment Reviews 22 7 Jul 2008 23:18
Spark plugs - KLE400 vs KLE500 staalburger Kawasaki 1 7 May 2007 08:01
spark plug inserts for twin plugs jem holmes BMW Tech 12 7 Feb 2005 07:41
spark plugs buck Yamaha Tech 5 8 Nov 2004 16:45
Bin your DIN plugs (and BMW ones)! POB/London Equipment Reviews 0 28 Apr 2004 05:19


All times are GMT +1. The time now is 00:01.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top