Iridium Sparks plugs
 

Please note: This is not a debate about whether they are any good/better. I have already bought them and they were only a couple of pounds more than standard!

Got a note from the suppliers saying:

"Do not regap Iridum spark plugs unless necessary..........<explaination>....."

Now, in my experience with changing plugs (cars mind you, not bikes) I have always have had to set the gap. So if you have used them in the past have you:

A= Not worried and put them straight in
B= Set the gap as per Suzuki/Haynes

Thanks
Luke

I checked mine, and they were correctly gapped, so didn't worry about it :) Might be worth checking that before you think any more on the subject.

Ah - good point! There's me sitting here at work pondering this!! Idiot! :oops:

I've always found the NGKs I've had to be correctly gapped out of the box.

What you must not use is the wedge type gapping tools, the centre electrode simply won't stand it. I would leave well alone unless significantly out of spec.

They require typically less voltage to spark than a "conventional" large diameter centre electrode type plug, so will generally give the rest of the HT side and easier life even if the gap is slightly large.

I've never seen one - has anyone got a photo?

NGK Iridium

http://www.mxbike.com/catalog/images/ngk_irdium.jpg

my CBR only uses iridium,

NGK ones that ive used have always been correctly gapped, and they have stayed at the correct gap for 17k (when i decided that i best change em)

dont use a blade type feeler gauge on them, use a wire one, the blade will damage the tip.

anybody got a link for these to fit a curvey?im a bit baffled by all the different types ,and cant seem to find specific sv ones :roll:

)tsm posted me up a link to a site.

sparkplugs.co.uk or something, thats where i got mine from, much cheaper than anywhere else

(my dealer wanted 30 quid per plug, thats 120 quid :shock: )

NGK CR8EIX, from memory.