Page 1 of 3
ngk plugs
Posted: Sat Dec 22, 2007 1:28 pm
Author: kenny z9fighter
is it just me or are ngk plugs crap?just put a set in last week,z900 started on the button,couple of days later,wouldnt start,plugs out no spark,cleaned em,no spark,checked wiring,coils,leads(brand new dyna coils,taylor leads)everything seemed fine.took a plug outa the buell put it in the ht,perfect spark!got my mate ngk plugs of the net for his bandit 12,same thing,what plugs should i use?at this rate i'm gonna be a shareholder for ngk!!
Posted: Sat Dec 22, 2007 1:40 pm
Author: paul doran
Kenny your quite correct NGK are useless
I find they foul up very easily and are then useless
try Nippon Denso
a very durable plug indeed
Posted: Sat Dec 22, 2007 3:11 pm
Author: floydsz1
Hi Kenny,
denso are definatley the way to go, I put some in my z1a and triumph tiggly, cant remember where i got em, but was from a web site that someone on here recommended. i ordered them on a sat from their website and they arrived on wednesday morning.
Posted: Sat Dec 22, 2007 4:34 pm
Author: london calling
Posted: Sat Dec 22, 2007 5:29 pm
Author: steve f
paul doran wrote:Kenny you quite correct NGK are useless
I find they foul up very easily and are then useless
try Nippon Denso
a very durable plug indeed
please explain how ngk plugs foul up on a 4 stroke engine thats in working order thats the biggest load of bull poo i have heard
Posted: Sat Dec 22, 2007 7:25 pm
Author: Pasc
NGK plugs really are shite. Standard fitment on z750 turbos are Br8es and they last about a fortnight before they are useless. They are now superceeded by BR8EIX at about ?8.50 a throw. You might get more life out of ngk plugs if you run a decent set of coils like Dyna's.
Posted: Sat Dec 22, 2007 7:47 pm
Author: chrisNI
This has been discussed on here any number of times, and while some people may not have had trouble with NGKs (which used to be a byword for reliability in the seventies) enough of us have found Nippon Denso W24ES-U to be a lot more reliable to make it worth taking note of. I am assuming despite stevef's post you started this thread because you have found plugs going off - the suggestion of many on here from experience is try Denso. Get them at
http://www.spark-plugs.co.uk/.
Or maybe we're all talking bull poo like top expert stevef suggests, you're just imagining it and we're getting backhanders from Denso.
Posted: Sat Dec 22, 2007 10:48 pm
Author: paul doran
I found NGK a great plug up until a few years ago when suddenly they would fail and no matter what you tried they remained dead
Iain Marshakk introduced me to Nippondenso and I have to say they are brilliant and all that NGK used to be and more
I am ignoring the brainless idiot who clearly know?s sod all about plug?s just like everything else he puts his size sixteen?s into
Posted: Sat Dec 22, 2007 11:00 pm
Author: steve f
paul doran wrote:I found NGK a great plug up until a few years ago when suddenly they would fail and no matter what you tried they remained dead
Iain Marshakk introduced me to Nippondenso and I have to say they are brilliant and all that NGK used to be and more
I am ignoring the brainless idiot who clearly know?s sod all about plug?s just like everything else he puts his size sixteen?s into
yes thats correct when you cant back up what you say ignore it and hope you dont look a fool

Posted: Sun Dec 23, 2007 12:54 am
Author: davejames
So you're backing it up and the rest of us are talking bollocks then eh Steve ??
Take my word for it NGK plugs are shite, I've had dozens of the bastard things in my Zed. Once they've fouled, there fucked, end of.
Posted: Sun Dec 23, 2007 1:16 am
Author: chrisNI
I started using Densos about five years ago after a bad experience with dead NGK plugs. The Densos are recommended as an alternative in the factory manual so I thought they were worth a try - that particular set are still in that bike and still working and I have always used them in the Zeds since. I subsequently found a lot of forum members had the same experience as has been discussed on here more than once. That's all I'm saying, that's my experience take it or leave it.
Posted: Sun Dec 23, 2007 8:05 am
Author: steve f
davejames wrote:So you're backing it up and the rest of us are talking bollocks then eh Steve ??
Take my word for it NGK plugs are shite, I've had dozens of the bastard things in my Zed. Once they've fouled, there fucked, end of.
not at all MR doran just read what everybody posted then posted as if he new what he was talking about as he has heard others say this so to be honest he just jumped on the band waggon trying to makle it look like he knows what he is on about

Posted: Sun Dec 23, 2007 8:32 am
Author: Pasc
Somebody needs to do some growing up.
Posted: Sun Dec 23, 2007 9:49 am
Author: bunnysZ
then mr doran must be a mind reader , because he posted first ,before anyone else posted ]
Posted: Sun Dec 23, 2007 9:54 am
Author: london calling
After getting through several sets of NGKs whilst giving my 1170 Lawson a service and many,many hours going through the electrics and ignition system I got some DENSO and no worries since
I'm sure it was Chris who mentioned that DENSO are the plug.
As I'd fitted new NGK plugs I assumed the problem was elsewhere
I'm pretty sure that NGK plugs are now made in China
I can get 'em via a trade contact for 30p each but I will only use DENSO regardless of ????$$$$