NGK Iridium Plug ?? - Triumph Forum: Triumph Rat Motorcycle Forums
» Main Menu

Discussion Forums
 » Twins
 » Tiger
 » General
 » RAT

Features
 » Blogs

Motorcycle.com Links

Contribute
 » Photo

Motorcycle Forums
» Insurance
» Sponsors
» Our Partners
»ATV Reviews
»Motorcycle Games

Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

Reply
 
LinkBack Thread Tools Display Modes
Old 09-17-2009, 04:44 PM   #1 (permalink)
New Member
Production 125
Main Motorcycle: 2007 Bonnie
 
Hitlersmustache's Avatar
 
Join Date: Mar 2008
Location: San Francisco
Posts: 8
NGK Iridium Plug ??

I'd like to put these in my 07 Bonneville, but I don't know the correct part #.

Anyone know the correct part #?
Hitlersmustache is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 09-17-2009, 06:16 PM   #2 (permalink)
Lifetime Premium
Site Supporter
Legend
Main Motorcycle: 2009 Bonneville SE
 
Forchetto's Avatar
 
Join Date: Jun 2009
Location: Asturias, Spain
Posts: 13,530
Other Motorcycle: Yamaha XV1100
Extra Motorcycle: Qingqi QM200GY-BA
Data from Jack lilley (UK)

NGK DPR9EIX-9

Harder grade than the 8. Best for summer use and hard riding. Price is per plug. Apparently gives better spark and comsumption figures. Well it says so on the box! NOTE: NOT FOR LATE STYLE ENGINE WITH SI (AI)

NGK DPR8EIX-9

Slighty softer than the 9 grade ideal for winter or low speed use. Improved spark apparently and gives better consumption figues. Will not make you more attractive to the opposite sex though, sorry.

Last edited by Forchetto; 09-17-2009 at 06:19 PM.
Forchetto is online now   Reply With Quote Quick reply to this message
Old 09-17-2009, 06:46 PM   #3 (permalink)
New Member
Production 125
Main Motorcycle: 2007 Bonnie
 
Hitlersmustache's Avatar
 
Join Date: Mar 2008
Location: San Francisco
Posts: 8
Thanks for the info!

I see that the DPR9EIX-9 says, "NOT FOR LATE STYLE ENGINE WITH SI." Is this referring to Air Injection(AI)? Will the plugs be a problem since I've removed the snorkel and AI?
Hitlersmustache is offline   Reply With Quote Quick reply to this message
Old 09-17-2009, 07:03 PM   #4 (permalink)
Lifetime Premium
Site Supporter
SuperSport
Main Motorcycle: 2007 Thruxton
 
sbpark's Avatar
 
Join Date: Jan 2008
Location: San Diego, CA
Posts: 1,013
i have the iridiums in my 2007 thruxton with the AI removed. all the popular vendors for our bikes sell them and i havent had a problem in 10k miles. they're expensive and have no effect on increasing HP, efficiency, etc. i guess the only advantage to these plugs is they will last longer than a conventional plug. i am no expert by any means, and the 'pros' on here seem to think the iriduims are a waste of money. but to answer your question they wont hurt your bike.
__________________
'07 Thruxton, Caspian Blue Checker, FCR's, 813 cams, Pieman ignitor, Predators, ported & polished head...
sbpark is offline   Reply With Quote Quick reply to this message
Old 09-18-2009, 12:49 AM   #5 (permalink)
Lifetime Premium
Site Supporter
Legend
Main Motorcycle: 2009 Bonneville SE
 
Forchetto's Avatar
 
Join Date: Jun 2009
Location: Asturias, Spain
Posts: 13,530
Other Motorcycle: Yamaha XV1100
Extra Motorcycle: Qingqi QM200GY-BA
Quote:
Originally Posted by Hitlersmustache View Post
Thanks for the info!

I see that the says, "NOT FOR LATE STYLE ENGINE WITH SI." Is this referring to Air Injection(AI)? Will the plugs be a problem since I've removed the snorkel and AI?
I think they mean "Secondary injection", just another way of saying AI.

All the NGK's I've seen for sale for Bonnies have been the "8" grade, i.e. DPR8EIX-9.
Forchetto is online now   Reply With Quote Quick reply to this message
Old 09-18-2009, 03:55 AM   #6 (permalink)
Senior Member
Formula Extreme
 
Join Date: Jul 2007
Location: Adelaide
Posts: 427
Quote:
Originally Posted by sbpark View Post
i have the iridiums in my 2007 thruxton with the AI removed. all the popular vendors for our bikes sell them and i havent had a problem in 10k miles. they're expensive and have no effect on increasing HP, efficiency, etc. i guess the only advantage to these plugs is they will last longer than a conventional plug. i am no expert by any means, and the 'pros' on here seem to think the iriduims are a waste of money. but to answer your question they wont hurt your bike.
Sorry to disagree with you but the Iridiums are heads and shoulders better than standard plugs. They may not make better Hp but they make for better combustion,
If you have done anything with the top end of your bike, carbs, air filter etc the Iridium can cope with change better thab standard plugs
Phil-1100 is offline   Reply With Quote Quick reply to this message
Old 09-18-2009, 06:51 AM   #7 (permalink)
Senior Member
World SuperBike
Main Motorcycle: 2010 R3 Roadster
 
fat frank's Avatar
 
Join Date: Oct 2008
Location: Houston, Texas
Posts: 2,476
Report Saturday on 09 Bonnie

I just put the 8's on my bike. I'm getting another dyno run done Saturday. I'm hoping for 5 more HP after what I paid for them..lol Those things cost me over 50 bucks.lol I'm embarrassed to tell you why. But for $50, you oughta get something in return, other that a kiss.
Tip for the day.
Don't put a dremel tool with a cutoff wheel in an old mans hands and try to side gap those little Bastards.
fat frank is offline   Reply With Quote Quick reply to this message
Old 09-18-2009, 02:32 PM   #8 (permalink)
Senior Member
SOTP Vintage Series
Main Motorcycle: 03 T100
 
mikeinva's Avatar
 
Join Date: Mar 2007
Location: richmond va
Posts: 7,737
I think the first number 8 is the heat range and the last number is the gap I am not sure
__________________
Why do I feel young on my bike
mikeinva is online now   Reply With Quote Quick reply to this message
Old 09-18-2009, 02:40 PM   #9 (permalink)
Lifetime Premium
Site Supporter
SuperSport
Main Motorcycle: 2007 Thruxton
 
sbpark's Avatar
 
Join Date: Jan 2008
Location: San Diego, CA
Posts: 1,013
Quote:
Originally Posted by fat frank View Post
I just put the 8's on my bike. I'm getting another dyno run done Saturday. I'm hoping for 5 more HP after what I paid for them..lol Those things cost me over 50 bucks.lol I'm embarrassed to tell you why. But for $50, you oughta get something in return, other that a kiss.
Tip for the day.
Don't put a dremel tool with a cutoff wheel in an old mans hands and try to side gap those little Bastards.
you paid $50 for what??!! (please dont say it was for spark plugs...)
__________________
'07 Thruxton, Caspian Blue Checker, FCR's, 813 cams, Pieman ignitor, Predators, ported & polished head...
sbpark is offline   Reply With Quote Quick reply to this message
Old 04-25-2011, 10:50 AM   #10 (permalink)
Senior Member
World SuperBike
Main Motorcycle: Hinckley Bonnevilles
 
Join Date: Jan 2009
Location: Daytona
Posts: 1,851
Other Motorcycle: Scrambler 900, Bonneville
Extra Motorcycle: 2013 Standard Aurum Gold
Are the 8s ok for all around riding? 790, BC exhaust Gateley 42mm carb kit.???
Thanks
vitesse is online now   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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 Off
Pingbacks are Off
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
New Ignition Coil, Spark Plug Wires and Iridium Spark Plugs...better performance? brownbomber Twins Talk 15 10-27-2009 03:25 PM
Iridium Plugs Ton Up Pirate Club Cafe' 13 04-21-2009 02:02 PM
Iridium Plug Part# ? stopwatch Tiger Workshop (archive) 4 09-18-2007 08:26 PM
NGK IX Iridium Sparks Saffer Twins Talk 15 02-06-2007 11:07 AM
DAZCO-IRIDIUM PLUG GAP? Brooksie Twins Talk 4 02-08-2006 03:13 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:45 PM.



Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.6.0