Iridium Spark Plugs - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 9 (permalink) Old 04-07-2007, 07:17 PM Thread Starter
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Iridium Spark Plugs

HI All.
I've read with some interest about some who have changed over to iridium spark plugs. Since I am getting two new tires put on this coming thursday, I want to ask if I also need to change out my plug cables when I change plugs?
Thanks for your help and guidance.
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post #2 of 9 (permalink) Old 04-07-2007, 07:27 PM
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Ernest -

The MF battery is not optional for our bikes, very good investment in prolonging the life of your r/r and stator.

The iridium's are optional, but I love how my performed after putting them in.


93VN750, under re-construction Member # 828

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post #3 of 9 (permalink) Old 04-07-2007, 10:07 PM
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No your cables will be fine. Not a whole lot that can go wrong with them. If they are cracked or have gashes in them by all meanss change them out.

As for Iridiums Lulu runs better and a little cooler with them.

Totally a good investment

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post #4 of 9 (permalink) Old 04-08-2007, 08:56 AM
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I wouldn't go back to the old types away from iridiums for anything. For me, the biggest thing I noticed was MUCH easier hot startings. I have not had the explosive backfire since putting the plugs in my bike. They are more expensive, I beleieve, well worth it.

SW Ohio

'02 VN750
Pipes drilled
Spline lubed
R/R relocated
AGM batteried
Iridium equipped
LED tail lighted
8000-ish miled
Soon to be MCCTed

Lovin Life.
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post #5 of 9 (permalink) Old 04-08-2007, 11:33 AM
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I changed over about 1 week ago and you can feel the difference. Easier start up and better acceleration. Little pricey but they will last a long time!

Mike B.
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post #6 of 9 (permalink) Old 04-08-2007, 11:55 AM
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Has anyone tried fresh iridiums vs fresh "normal" plugs? Or irridiums with ~3000 miles on them vs fresh "normal" plugs?

I know when I changed my plugs (normal) it made a huge difference. Fresh plugs on just about any vehicle will make a big difference. I just wonder how much of the "I put in irridiums and they are awesome - much better than normal" is "in the head", how much of it is the plugs simply being fresh, and how much of it is "real".

Been tempted to get irridiums, but I'm cheap and haven't found (or looked for) scientific data supporting the high cost. Feel free to publicly or privately insult, demean, or better yet throw links at me ;-))

Curtis - Albany Oregon.
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post #7 of 9 (permalink) Old 04-08-2007, 01:21 PM
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Lurch mentioned Lulu runs cooler with iridiums. I don't think that is something that would change with fresh plugs. Correct me if I'm wrong.
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post #8 of 9 (permalink) Old 04-08-2007, 01:27 PM
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Plugs do have a temp rating, so the Iridiums may be a cooler running plug.

Chad Falstad "Hawk"
Vroc #17649
2011 HD Ultra Classic "angel"
2001 Nomad 1500 Sold March 2012
2001 VN 750 "Sold June with 2008 with 21,000""Serinity"
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post #9 of 9 (permalink) Old 04-08-2007, 03:55 PM Thread Starter
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Thanks all. I will go with the new plugs and battery when I do the tires this Thursday. Then I can post some pics of my bike with my new Givi Bags on.
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