1986 mariner 15hp, plugs, ngk or champion?

dkonrai

Senior Chief Petty Officer
Joined
May 9, 2009
Messages
719
i have this mariner 15 hp vintage 1986. which plugs run better? ngk or champion? i fish and will be using this on a gregor 14 foot wide body. want it mainly for trolling.
thanks
dino
 

Star

Chief Petty Officer
Joined
Sep 21, 2010
Messages
481
Re: 1986 mariner 15hp, plugs, ngk or champion?

I have always used Champions on my cars, But I did get a bad one on my last tune. I like to go with the manufacturer recomended for outboards and I think Mercury uses NKGs from the factory. I change mine every year anyway so it shouldn't make any difference.
 

dkonrai

Senior Chief Petty Officer
Joined
May 9, 2009
Messages
719
Re: 1986 mariner 15hp, plugs, ngk or champion?

thanks guys!
 

quicktach

Petty Officer 1st Class
Joined
Aug 24, 2012
Messages
394
Re: 1986 mariner 15hp, plugs, ngk or champion?

either champion or NGK are good. What's important is to clean them at least yearly and use the plug condition as an indicator of your engine's health.
 
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