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07-06-2015, 10:40 PM | #1 |
Join Date: Jul 2015
Location: Las Vegas, NV
Posts: 207
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Just installed NGK Iridium plugs - great first impression
Hi guys/gals, I'm new to the forum & this is my first thread besides the New Member post.
I just picked up my 2007 Vulcan 1600 Nomad on 06-30-2015. Overall, the bike ran fine... but fine is not good enough for me. I'm very particular & like to keep my vehicles running in tip top condition. I felt the throttle response was a bit sluggish and it had a slight spark knock under load. Thinking it was probably a combination of old fuel, possibly regular instead of premium, old spark plugs and maybe just sitting for a few months I decided to run a couple of tanks with SeaFoam and hit the road for just under 300 miles in the last week. The SeaFoam alone made a slight but noticeable difference. Then today the NGK DPR7EIX-9 Iridium Spark Plugs were in my mailbox when I got home from work There was an immediate improvement in starting, idle quality, overall sound and a solid improvement in throttle response across the band. The rain clouds came in so I only ran it down the street for a few minutes... I will report back after a few days but I can say for sure that these are definitely worth the extra $$.
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--------------------------------- 2007 Vulcan 1600 Nomad - 18" Street Glide Front wheel conversion (details are on this forum) - HD King Tour-Pak w/ Wompus Rack - Mustang wide touring two piece seat - Chuckster's 3" Handlebar Risers - Baron's Big Air Kit - Chuckster's left side decorative plate - Cobra True Duals w/ Billet Tips - Speedmetal Cree LED Headlight conversion kit - Michelin Commander II tires Real Estate Broker/Property Manager Las Vegas, NV USA Login or Register to Remove Ads |
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07-07-2015, 07:57 AM | #2 |
Join Date: Aug 2007
Location: Newmarket Ontario Canada
Posts: 35,387
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I too found that the bike starts faster with the Iridium plugs, they do make a difference.
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2002 Nomad aka Bountyhunter VBA #27 VROC #18951 |
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07-07-2015, 03:24 PM | #3 |
Sr. Member
Join Date: Jan 2008
Location: Cartersville, Georgia
Posts: 4,838
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Ditto what Steve said.
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Cliff "VulcanE" Evans 2005 Blue & Silver 1600 Nomad VBA # 320 VROC # 20381 |
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07-07-2015, 05:16 PM | #4 |
Join Date: Jul 2015
Location: Las Vegas, NV
Posts: 207
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I just got back from a ride around town, about 50 miles total, mostly stop & go with some highway. BTW- it's about 100 degrees today in Vegas with 35% humidity, which is pretty damp for here. The bike did very well. Started up great this morning & ran beautifully in traffic. I turned down the idle a little bit, as it was idling slightly faster than with the previous plugs.. definitely smoother overall.
Next on the list to check: Air Filter.
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--------------------------------- 2007 Vulcan 1600 Nomad - 18" Street Glide Front wheel conversion (details are on this forum) - HD King Tour-Pak w/ Wompus Rack - Mustang wide touring two piece seat - Chuckster's 3" Handlebar Risers - Baron's Big Air Kit - Chuckster's left side decorative plate - Cobra True Duals w/ Billet Tips - Speedmetal Cree LED Headlight conversion kit - Michelin Commander II tires Real Estate Broker/Property Manager Las Vegas, NV USA |
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07-07-2015, 09:55 AM | #5 |
Advanced Member
Join Date: Feb 2012
Location: Starke Florida
Posts: 856
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I have also tried the NGK Irridiums, but now I am running the E3 plugs with the round fire ring. No worry about gap, and bike starts quick and great gas mileage, I was getting around 42 MPG in the mountains riding 2 up with luggage!
Only a couple bucks more than regular NGK s.... I really like a good spark plug thread! And tires, and even oil too, dammit man! I gotta go ride!
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"Ride it like you stole it"! 2008 1600 Nomad 56K miles "BlueBelle" 2004 1500 Nomad 102 K miles "Black Beauty" ABATE Black Creek Chapter Amvet Rider Post 86 http://www.facebook.com/AmvetPost86 Weston A. Price Foundation member. Vegetarian...... An old Indian word meaning "Bad Hunter" Legalize Freedom! Question Authority! "Im in love with the waitress, and I dont even know her name" "Boys" Gone Wild" ! Mainstreet Station 2012 Daytona Bikeweek Login or Register to Remove Ads
Last edited by roadhawg; 07-07-2015 at 09:59 AM.
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07-07-2015, 02:47 PM | #6 | |
Join Date: Jul 2015
Location: Las Vegas, NV
Posts: 207
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I was tossing back and forth between the Iridiums and the E3... glad to hear the E3's work as well.
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--------------------------------- 2007 Vulcan 1600 Nomad - 18" Street Glide Front wheel conversion (details are on this forum) - HD King Tour-Pak w/ Wompus Rack - Mustang wide touring two piece seat - Chuckster's 3" Handlebar Risers - Baron's Big Air Kit - Chuckster's left side decorative plate - Cobra True Duals w/ Billet Tips - Speedmetal Cree LED Headlight conversion kit - Michelin Commander II tires Real Estate Broker/Property Manager Las Vegas, NV USA |
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07-29-2015, 10:43 PM | #7 |
Member
Join Date: Nov 2013
Location: Kansan. City, KS
Posts: 141
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Paid $28 for my E3s..... Now to get them in this week and see what the difference is...
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07-07-2015, 12:59 PM | #8 |
Member
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got the same iridium plugs in my '99 Nomad..way better than stock.
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HurtSoMuch Vulcan Nomad 1500 '99 VBA #02163 |
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07-07-2015, 11:30 PM | #9 |
Jr. Member
Join Date: Mar 2015
Location: Colorado
Posts: 20
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After reading this thread I went out and picked up a set at O'Reilly's. WOW!!! Bike has been knocking ever since I got it; running Premium (91 here in Denver), Seafoam, MMO, nothing seemed to have an effect. Took it out for a spin after the change (and original plugs had good color) and nothing - no ping at all. Gunning it, under load, nothing seemed to faze it. Best $28 I ever spent on a mod.
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07-08-2015, 01:26 PM | #10 | |
Advanced Member
Join Date: Nov 2014
Location: Banner, WA
Posts: 644
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Mike USN Retired 2007 Nomad |
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07-09-2015, 12:16 AM | #11 |
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Join Date: Mar 2015
Location: Colorado
Posts: 20
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07-09-2015, 08:00 AM | #12 | |
Member
Join Date: Feb 2015
Location: Illinois
Posts: 197
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07-09-2015, 08:10 AM | #13 | |
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Join Date: Feb 2015
Location: Illinois
Posts: 197
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07-09-2015, 01:32 PM | #14 |
Join Date: Jul 2015
Location: Las Vegas, NV
Posts: 207
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DPR7EIX-9 are Iridium plugs. DPR6EA-9 are standard plugs.
7's are one step colder than 6's, though I'm of the opinion it doesn't play much into the factor of why the bike runs better. The Iridium plug is simply more efficient. The previous owner of my bike had used DPR7EA-9 plugs which I found out when I removed them. The 7's are listed in the manual for my bike as the optional plug for more highway and hot weather driving. So considering the same 7 temp was used, the only factor remaining is the efficiency of the Iridium plugs. They also say Iridium plugs outlast standard plugs, which doesn't matter to me. I'll change them every year regardless of their condition... it's cheap $28 insurance for me that I have a great running bike.
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--------------------------------- 2007 Vulcan 1600 Nomad - 18" Street Glide Front wheel conversion (details are on this forum) - HD King Tour-Pak w/ Wompus Rack - Mustang wide touring two piece seat - Chuckster's 3" Handlebar Risers - Baron's Big Air Kit - Chuckster's left side decorative plate - Cobra True Duals w/ Billet Tips - Speedmetal Cree LED Headlight conversion kit - Michelin Commander II tires Real Estate Broker/Property Manager Las Vegas, NV USA |
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07-09-2015, 04:09 PM | #15 | |
Jr. Member
Join Date: Mar 2015
Location: Colorado
Posts: 20
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