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Old 21 August 2004, 16:29   #11
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When you say that some are better than others, what is "better" apart from that fact they don't corode so quickly?
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Old 21 August 2004, 16:52   #12
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Better spark for a start,Have you ever used a spark plug tester,I have tried brand new plugs of various makes on a tester and the NGK plugs win hands down.Please go and buy a set.Most of us are saying the same thing.
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Old 21 August 2004, 17:25   #13
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We only use NGK's at work unless its a Johnson/evinrude. They seem very keen to only run best on Champions?? Some plugs that Champion do and Johnson/evinrude recommened don't have an NGK equivilant .
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Old 22 August 2004, 00:27   #14
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Quote:
Originally Posted by timofengland
When you say that some are better than others, what is "better" apart from that fact they don't corode so quickly?
Isn't the corrosion issue quite important on a boat as it would decrease the level of conductvity thereby producing less spark and less power. my understanding is that this can cause problems in modern computer controlled engines. Optimax's can come up with an injector error message sometimes as not enough fuel is being burnt off cos of a wimpy spark
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Old 22 August 2004, 01:41   #15
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Go for NGK - unless you have a diesel...

Keith Hart
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Old 22 August 2004, 04:21   #16
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Nice one Keith.
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Old 22 August 2004, 04:51   #17
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We only use NGKs in the XR2 race engine - put a set in yesterday!
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Old 22 August 2004, 06:21   #18
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[QUOTE=Rogue Wave] Well if your marinising your Alfa romeo I'd listen to codprawn otherwise listen to those with some experience.

PLENTY of experience with ALL kinds of engine ta very much!

I stick by what I say - different engines like different kinds of plugs - experiment!
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Old 22 August 2004, 06:31   #19
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How often should one change one's plugs on a 2 stroke engine?
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Old 22 August 2004, 07:17   #20
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Try this - very helpfull site!

http://www.outboardrepairs.com/spark_plugs/
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