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Old 05-21-2007, 3:32 AM   #1
 
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What are the benefits of Iridium spark plugs?

Thought I should change my plugs while the bikes still in bits so... What are the benefits of Iridium spark plugs?

Cheers
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Old 05-21-2007, 4:12 AM   #2
 
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Re: What are the benefits of Iridium spark plugs?

Probably not enough to justify spending that much on them, especially 4 of them. It's supposed to not wear down the elctrode as much as regular or platinum plugs. Apparently iridium withstands the arc jumping across.
If I were you, I'd stick with the run of the mill NGK's
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Old 05-21-2007, 7:44 AM   #3
 
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Re: What are the benefits of Iridium spark plugs?

They wear a lot less so you don't have to change your plugs as often. If it is as hard to get to your plugs as it is to mine on the F4i that can be a huge benefit. I wouldn't want to have to do it more than every couple years.
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Old 05-21-2007, 8:07 AM   #4
 
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Re: What are the benefits of Iridium spark plugs?

they are very lasting , i recently just change they at 45000 km and they are still going strong but just change it during my regular servicing
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Old 05-21-2007, 8:51 AM   #5
 
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Re: What are the benefits of Iridium spark plugs?

the name sounds cool!


Didn't cost me any more than a couple of £1 over the stock one tbh.
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Old 05-21-2007, 8:56 AM   #6
 
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Re: What are the benefits of Iridium spark plugs?

taken from a website:
(Iridium plugs) resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from IRIDIUM POWER is shown on the table to the right. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.

www.carsparkplugs.com - Car Spark Plugs Specialists - NGK Iridium IX, Denso Iridium Power, Champion, Bosch Car Spark Plugs.
and
www.carsparkplugs.com - Car Spark Plugs Specialists - NGK Iridium IX, Denso Iridium Power, Champion, Bosch Car Spark Plugs.

but can't vouch for the validity of the finding.........beleive it if you will.
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Old 05-21-2007, 9:53 AM   #7
 
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Re: What are the benefits of Iridium spark plugs?

Cool, so for £30 they are worth it!

Nice, cheers
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Old 05-21-2007, 2:11 PM   #8
 
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Re: What are the benefits of Iridium spark plugs?

£25 from this ebayer in Chichester

eBay My World - autoorders
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Old 05-21-2007, 2:14 PM   #9
 
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Re: What are the benefits of Iridium spark plugs?

if the above guy's right and they are good at 45,000km, roughly 30,000miles I don't recken I'll be changing them again for 5-years which given the fact they are a pain to do is a great relief!!! :LOL:
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Old 05-21-2007, 3:17 PM   #10
 
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Re: What are the benefits of Iridium spark plugs?

My bike wont run on the cheap ones. I went through 2 sets of cheapies in a week before I had to throw down on the Denso's
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Old 05-21-2007, 8:21 PM   #11
 
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Re: What are the benefits of Iridium spark plugs?

I tend to believe there is a difference in performance. I've never had a vehicle run significatly better with new plugs.. until i changed to the NGK Iridium.
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Old 05-22-2007, 9:16 PM   #12
 
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Re: What are the benefits of Iridium spark plugs?

Originally Posted by visitor View Post
My bike wont run on the cheap ones. I went through 2 sets of cheapies in a week before I had to throw down on the Denso's
It's required for 929/954s
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Old 05-24-2007, 1:59 PM   #13
 
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Re: What are the benefits of Iridium spark plugs?

i'm using NGK iridiums for my bike since 2005... gone like 30,000kms and they're still running strong. ( i check them every 5000km )

can feel its better than the stock plugs ( very minimal ) but cold starts are better. worth every cent of it compared to the stock plugs.
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