www.zxrworld.co.uk

I see in race kit manual said use NGK R0045-10



Why this plugs don't have an electrode?

For better burn, or for skimmed head modification?

Racer's please advise.

No one

To prevent shielding of the flame front by the electrode, can be a bit subjective at times.

mick41zxr wrote:To prevent shielding of the flame front by the electrode, can be a bit subjective at times.

thanks!

Can't find these plugs for sale anywhere - Have they been superceded ?

mark400 wrote:Can't find these plugs for sale anywhere - Have they been superceded ?

U mean that is not sale alone?

Or there is a different part number?

I think ZXR 400 engines can use

NGK R0045-J10

NGK R0045-Q10

NGK R0373A-10

And Denso RU01-31



I dont know if this plugs sold for now only in race kits.

In this page show that the

CR9EK (the stock plug for zxr400) in race part number is R0373A, R0045Q (the heat range is empty for choose)

http://www.soling-nsk.ru/moto_ngk.html

This picture is from NGK R0373A-10



NGK R0045J-10

They are surface discharge plugs and are used on high compression engines to give a more reliable spark than a standard plug. But you best sit down when you get a price for them There about £70 each!!!