Can anyone tell me if need an engine the NGK semi-surface ?

[ancozxr]

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.

[ancozxr]

No one

[mick41zxr]

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

[ancozxr]

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

thanks!

[mark400]

Can't find these plugs for sale anywhere - Have they been superceded ?

[ancozxr]

Can't find these plugs for sale anywhere - Have they been superceded ?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

[ancozxr]

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

[THE FLUTE]

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!!!