Spark plugs

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Sep 7, 2019 | 05:48 AM

Tcasmarcus

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From: Hamar, Norway

Spark plugs

I guess Iridium ones are not recommended. but i seem to find a couple of different options, so not quite sure yet which ones i should get..?

Sep 7, 2019 | 12:43 PM

Lady Penelope

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From: Kansas City USA

http://www.jagrepair.com/images/TSB/...6%20Engine.pdf

These are the Champion RC12YC as the final TSB and the gap was changed from .035 to .040 inch on all X300 engines

Last edited by Lady Penelope; Sep 7, 2019 at 01:02 PM.

Sep 7, 2019 | 01:15 PM

Tcasmarcus

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From: Hamar, Norway

Quote:

Originally Posted by Lady Penelope

http://www.jagrepair.com/images/TSB/...6%20Engine.pdf

These are the Champion RC12YC as the final TSB and the gap was changed from .035 to .040 inch on all X300 engines

Thanks! But I can't quite figure out I need the br6ef or the br7ef?

Sep 7, 2019 | 03:21 PM

Tcasmarcus

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From: Hamar, Norway

br6ef it is😅

Sep 7, 2019 | 04:00 PM

Lady Penelope

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From: Kansas City USA

I can't find the TSB but I think they went from a RC9YC to a RC12YC

The 12 being a hotter plug

Sep 9, 2019 | 06:07 PM

SleekJag12

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From: Scottsdale, AZ, USA

NGK BR7EF sirs! That was also an update for the V12. The RC12YC is only for the AJ16. But we all know that...

The BR6EF will be fine for the V12 too, if already on hand.