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#12813499 - 07/02/18 10:59 AM Spark Plugs
Topwater2 Online   content
Pro Angler

Registered: 03/06/14
Posts: 927
When changing out your plugs, do you stay with the NKG's that came factory or do you go with a different brand?
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#12813513 - 07/02/18 11:09 AM Re: Spark Plugs [Re: Topwater2]
jwcromer Offline
Extreme Angler

Registered: 11/18/06
Posts: 2517
Loc: N. Richland Hills,Texas
why change? stay with what the factory put in.side note don't buy them at a marine dealer,go to an auto supply store,lot less money and the same plug,know the no. when you go

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#12813540 - 07/02/18 11:27 AM Re: Spark Plugs [Re: Topwater2]
David Rush Offline
Extreme Angler

Registered: 10/31/04
Posts: 1796
Loc: Lewisville
I’d suggest doing a little research before you change the plugs. There are lots of topics on bbc about plugs. Iridium, indexing, and gapping are all things you need to know about. Different motors have different requirements, but I know they recommend certain iridium plugs on Mercs not ngk. Some may or may not need indexing.
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#12813546 - 07/02/18 11:32 AM Re: Spark Plugs [Re: Topwater2]
forkduc Offline
TFF Guru

Registered: 03/28/07
Posts: 12184
Loc: Plano,Texas
Post in boats and motors

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#12813569 - 07/02/18 11:45 AM Re: Spark Plugs [Re: Topwater2]
the skipper Online   content
TFF Team Angler

Registered: 07/04/11
Posts: 4468
Loc: nederland, TX
Stick with factory. I have seen posts where people have changed to other brands and they couldn't hold up and the tips come off or maybe they are just a hair longer and beat the piston top. Some have caused blown motors also

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#12813636 - 07/02/18 12:18 PM Re: Spark Plugs [Re: David Rush]
machinist Online   content
Extreme Angler

Registered: 08/22/06
Posts: 1982
Loc: Lake Graham, Lot 30
Originally Posted By: David Rush
I’d suggest doing a little research before you change the plugs. There are lots of topics on bbc about plugs. Iridium, indexing, and gapping are all things you need to know about. Different motors have different requirements, but I know they recommend certain iridium plugs on Mercs not ngk. Some may or may not need indexing.


You can buy NGK in Iridium, copper and several other materials. Ngk's are what come in Mercs from the factory.
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I fish on the edge and stay out of the middle

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#12813742 - 07/02/18 01:37 PM Re: Spark Plugs [Re: the skipper]
leethefishking Online   content
Extreme Angler

Registered: 05/24/02
Posts: 1820
Loc: San Marcos, TX
Originally Posted By: the skipper
Stick with factory. I have seen posts where people have changed to other brands and they couldn't hold up and the tips come off or maybe they are just a hair longer and beat the piston top. Some have caused blown motors also
This, don't risk it!

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#12813805 - 07/02/18 02:56 PM Re: Spark Plugs [Re: Topwater2]
Topwater2 Online   content
Pro Angler

Registered: 03/06/14
Posts: 927
Thanks folks, NGK it is.
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FishKen

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#12814405 - 07/02/18 10:45 PM Re: Spark Plugs [Re: machinist]
David Rush Offline
Extreme Angler

Registered: 10/31/04
Posts: 1796
Loc: Lewisville
Originally Posted By: machinist
Originally Posted By: David Rush
I’d suggest doing a little research before you change the plugs. There are lots of topics on bbc about plugs. Iridium, indexing, and gapping are all things you need to know about. Different motors have different requirements, but I know they recommend certain iridium plugs on Mercs not ngk. Some may or may not need indexing.


You can buy NGK in Iridium, copper and several other materials. Ngk's are what come in Mercs from the factory.


You are correct... sorry I mistyped that. Not sure why I said not NGK.
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www.keelguard.com
Contact me for 20% off all Megaware products.

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