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View Full Version : Champion or NGK plugs for outboard?



franky
10-18-2008, 06:37 PM
Hey guys - I just picked up a 1990 Evinrude 15hp outboard, and was doing some routine type maintenance before I put her into duty. I am going to replace the plugs - I know the standard plugs are Champions, but I have heard the motor might run smoother with NGK's. Anybody have any experience or thoughts here? Thanks for any info! Appreciate it.



ESOX
10-18-2008, 06:44 PM
Mercs come with NGK's as OEM.
bigrackmack
10-18-2008, 06:50 PM
Had good luck with NGK's......Mack
Quack Wacker
10-20-2008, 02:07 PM
Most outboards run NGK. I would stick with what the manufactuer recommends and I believe that is NGK.
duckboy123
10-20-2008, 09:46 PM
NGK are a little smoother, but not a lot of difference. my two cents.
franky
10-20-2008, 10:17 PM
Most outboards run NGK. I would stick with what the manufactuer recommends and I believe that is NGK.

For this particular motor (1990) they came from the factory with the Champions.
franky
10-20-2008, 10:18 PM
NGK are a little smoother, but not a lot of difference. my two cents.


I had heard this, but only once, that is why I was asking to see if it is the general consensus or just "urban myth".
waterfoul
10-21-2008, 12:16 AM
I prefer NGK... in the past I've had issues with Champions coming apart (the adhesive they use to seal the ceramic into the plug failed on 2 occasions for me) so I don't use them for any of my motors.