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Spark plug recomendation

Posted: Sun May 31, 2020 3:02 pm
by payneo
Can anyone recommend what spark plugs to use on my vfr 400 and perhaps where I can get them at a decent price

Re: Spark plug recomendation

Posted: Mon Jun 01, 2020 12:50 pm
by magg
Google search will find the type numbers from various manufactures and they are all expensive. Rick Oliver may be able to help.

Re: Spark plug recomendation

Posted: Tue Jun 02, 2020 10:45 am
by CMSMJ1
ER9EH plugs - and they are not cheap due to their size..

There is a Nippon Denso equivalent but I've never used them

Re: Spark plug recomendation

Posted: Tue Jun 02, 2020 1:38 pm
by magg
China sells their copy for $40 a set I believe.

Re: Spark plug recomendation

Posted: Wed Jun 10, 2020 12:26 pm
by Foxy400
magg wrote: Tue Jun 02, 2020 1:38 pm China sells their copy for $40 a set I believe.
But would you use them?

Re: Spark plug recomendation

Posted: Thu Jul 16, 2020 6:49 am
by kagari15
The Denso equivalent is [IRIDIUM POWER] IY24, IY27, IY31, equivalent with NGK heat ranges 8, 9, 10 respectively. (8mm thread dia.)

Funny that Denso offers "Laser Welding" and thin-tip technology on the Iridium Power and Iridium Racing series while for NGK you need to get the Laser Iridium series which has a more painful price...