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 Post subject: Re: Iridium Spark Plugs
PostPosted: Mon Apr 10, 2017 4:46 pm 
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300 cc
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Joined: Mon Apr 22, 2013 7:07 pm
Posts: 570
Tony Ferrari wrote:
I recently fitted one in my 450EXC before racing in the Tour of Portugal, didn't notice the slightest difference!

Image



And I raced the same event with a standard NGK plug and had no issues either, just like the previous 8000 miles of green laning and racing.

Save your money fit what the manufacturer recommends. It's spent £100s of thousands on engine development. Do people really believe that they would have missed a trick to extract that extra few donkeys from the engine!!!! Image


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 Post subject: Re: Iridium Spark Plugs
PostPosted: Mon Apr 10, 2017 7:44 pm 
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650 cc Monster
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Joined: Fri Aug 14, 2009 8:34 am
Posts: 5139
Location: East Sussex
My understanding is that iridium plugs are only any use when running really hot under competition conditions.
No advantage whatsoever for day to day riding or driving. If you're running that hot you're going too fast for the road or trail.

_________________
2014 KTM 690 Enduro R ABS - 2015 Husky FE 450 - 1967 Triumph Trophy TR6R
Liable to sudden and unintended changes in speed and direction.
Araf!


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 Post subject: Re: Iridium Spark Plugs
PostPosted: Mon Apr 10, 2017 8:56 pm 
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125cc
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Joined: Mon Dec 27, 2010 8:34 pm
Posts: 175
Location: Sunny Hudds
Come into their own in damp cold winter starts.


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